12211221

Names of 12211221

• Cardinal: 12211221 can be written as Twelve million, two hundred eleven thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 1.2211221 × 10⁷

Factors of 12211221

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 261

Divisors of 12211221

• Number of divisors d(n): 32
• Complete list of divisors:
  1 3 11 33 37 73 111 137 219 407 411 803 1221 1507 2409 2701 4521 5069 8103 10001 15207 29711 30003 55759 89133 110011 167277 330033 370037 1110111 4070407 12211221
• Sum of all divisors σ(n): 18626688
• Sum of proper divisors (its aliquot sum) s(n): 6415467
• 12211221 is a deficient number, because the sum of its proper divisors (6415467) is less than itself. Its deficiency is 5795754

Bases of 12211221

• Binary: 101110100101010000010101₂
• Hexadecimal: 0xBA5415
• Base-36: 79Q8L

Squares and roots of 12211221

• 12211221 squared (12211221²) is 149113918310841
• 12211221 cubed (12211221³) is 1820863010669626146861
• The square root of 12211221 is 3494.4557516157
• The cube root of 12211221 is 230.2783083435

Scales and comparisons

• 12,211,221 seconds is equal to 20 weeks, 1 day, 8 hours, 21 seconds.
• To count from 1 to 12,211,221 would take you about thirty weeks!

  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 12211221 cubic inches would be around 19.2 feet tall.

Recreational maths with 12211221

• 12211221 is the same when its digits are reversed! That makes it a palindromic number.
• The number of decimal digits it has is: 8
• The sum of 12211221's digits is 12
• More coming soon!