22222222188 has 24 divisors (see below), whose sum is σ = 51860551680. Its totient is φ = 7406164560.

The previous prime is 22222222177. The next prime is 22222222189. The reversal of 22222222188 is 88122222222.

It is not an unprimeable number, because it can be changed into a prime (22222222189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79368 + ... + 225263.

It is an arithmetic number, because the mean of its divisors is an integer number (2160856320).

Almost surely, 2^22222222188 is an apocalyptic number.

It is an amenable number.

22222222188 is an abundant number, since it is smaller than the sum of its proper divisors (29638329492).

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

22222222188 is a wasteful number, since it uses less digits than its factorization.

22222222188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310717 (or 310715 counting only the distinct ones).

The product of its digits is 16384, while the sum is 33.

The spelling of 22222222188 in words is "twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred eighty-eight".