22921218112 has 56 divisors (see below), whose sum is σ = 50122303616. Its totient is φ = 10332983808.

The previous prime is 22921218109. The next prime is 22921218137. The reversal of 22921218112 is 21181212922.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284568 + ... + 356119.

It is an arithmetic number, because the mean of its divisors is an integer number (895041136).

Almost surely, 2^22921218112 is an apocalyptic number.

It is an amenable number.

22921218112 is an abundant number, since it is smaller than the sum of its proper divisors (27201085504).

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

22921218112 is a wasteful number, since it uses less digits than its factorization.

22921218112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640755 (or 640745 counting only the distinct ones).

The product of its digits is 2304, while the sum is 31.

The spelling of 22921218112 in words is "twenty-two billion, nine hundred twenty-one million, two hundred eighteen thousand, one hundred twelve".