22122121002200 has 48 divisors (see below), whose sum is σ = 51434278787880. Its totient is φ = 8848788623360.

The previous prime is 22122121002173. The next prime is 22122121002211. The reversal of 22122121002200 is 220012122122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40406687 + ... + 40950513.

Almost surely, 2^{22122121002200} is an apocalyptic number.

22122121002200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122121002200 is an abundant number, since it is smaller than the sum of its proper divisors (29312157785680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22122121002200 is a wasteful number, since it uses less digits than its factorization.

22122121002200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747236 (or 747227 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22122121002200 its reverse (220012122122), we get a palindrome (22342133124322).

The spelling of 22122121002200 in words is "twenty-two trillion, one hundred twenty-two billion, one hundred twenty-one million, two thousand, two hundred".