1221399821961

Names of 1221399821961

• Cardinal: 1221399821961 can be written as One trillion, two hundred twenty-one billion, three hundred ninety-nine million, eight hundred twenty-one thousand, nine hundred sixty-one.

Scientific notation

• Scientific notation: 1.221399821961 × 10¹²

Factors of 1221399821961

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 62849

Divisors of 1221399821961

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 9 11 27 33 61 99 183 297 549 671 1093 1647 2013 3279 6039 9837 12023 18117 29511 36069 61681 66673 108207 185043 200019 324621 555129 600057 678491 733403 1665387 1800171 2035473 2200209 3762541 6106419 6600627 11287623 18319257 19801881 33862869 41387951 67417333 101588607 124163853 202251999 372491559 606755997 741590663 1117474677 1820267991 2224771989 4112457313 6674315967 12337371939 20022947901 37012115817 45237030443 111036347451 135711091329 407133273987 1221399821961
• Sum of all divisors σ(n): 2008208014080
• Sum of proper divisors (its aliquot sum) s(n): 786808192119
• 1221399821961 is a deficient number, because the sum of its proper divisors (786808192119) is less than itself. Its deficiency is 434591629842

Bases of 1221399821961

• Binary: 10001110001100001000110100011111010001001₂
• Hexadecimal: 0x11C611A3E89
• Base-36: FL3PX289

Squares and roots of 1221399821961

• 1221399821961 squared (1221399821961²) is 1491817525086362497885521
• 1221399821961 cubed (1221399821961³) is 1822105659538782806066482588359726681
• The square root of 1221399821961 is 1105169.5896834115
• The cube root of 1221399821961 is 10689.3824918551

Scales and comparisons

• 1,221,399,821,961 seconds is equal to 38,836 years, 38 weeks, 2 days, 19 minutes, 21 seconds.
• To count from 1 to 1,221,399,821,961 would take you about ninety-seven thousand and ninety-one years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 1221399821961 cubic inches would be around 890.8 feet tall.

Recreational maths with 1221399821961

• 1221399821961 backwards is 1691289931221
• The number of decimal digits it has is: 13
• The sum of 1221399821961's digits is 54
• More coming soon!