# 22

## 22 is an even composite number composed of two prime numbers multiplied together.

What does the number 22 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

22 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

## Prime factorization of 22:

### 2 × 11

See below for interesting mathematical facts about the number 22 from the Numbermatics database.

### Names of 22

• Cardinal: 22 can be written as Twenty-two.

### Scientific notation

• Scientific notation: 2.2 × 101

### Factors of 22

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 13

### Divisors of 22

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 36
• Sum of proper divisors (its aliquot sum) s(n): 14
• 22 is a deficient number, because the sum of its proper divisors (14) is less than itself. Its deficiency is 8

### Bases of 22

• Binary: 101102
• Base-36: M

### Squares and roots of 22

• 22 squared (222) is 484
• 22 cubed (223) is 10648
• The square root of 22 is 4.6904157599
• The cube root of 22 is 2.8020393307

### Scales and comparisons

How big is 22?
• A cube with a volume of 22 cubic inches would be around 0.2 feet tall.

### Recreational maths with 22

• 22 is the same when its digits are reversed! That makes it a palindromic number.
• The number of decimal digits it has is: 2
• The sum of 22's digits is 4
• More coming soon!