22222122222 has 16 divisors (see below), whose sum is σ = 45107592192. Its totient is φ = 7296816120.

The previous prime is 22222122211. The next prime is 22222122253.

22222122222 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 27639054 + ... + 27639857.

It is an arithmetic number, because the mean of its divisors is an integer number (2819224512).

Almost surely, 2^22222122222 is an apocalyptic number.

22222122222 is an abundant number, since it is smaller than the sum of its proper divisors (22885469970).

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

22222122222 is a wasteful number, since it uses less digits than its factorization.

22222122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55278983.

The product of its digits is 1024, while the sum is 21.

The spelling of 22222122222 in words is "twenty-two billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-two".