22222002212112 has 40 divisors (see below), whose sum is σ = 57415419587680. Its totient is φ = 7406226904320.

The previous prime is 22222002212099. The next prime is 22222002212161. The reversal of 22222002212112 is 21121220022222.

It is a super-2 number, since 2×22222002212112² (a number of 27 digits) contains 22 as substring.

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, 34274437 + ... + 34916772.

It is an arithmetic number, because the mean of its divisors is an integer number (1435385489692).

Almost surely, 2^{22222002212112} is an apocalyptic number.

It is an amenable number.

22222002212112 is an abundant number, since it is smaller than the sum of its proper divisors (35193417375568).

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

22222002212112 is a wasteful number, since it uses less digits than its factorization.

22222002212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69197911 (or 69197905 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22222002212112 its reverse (21121220022222), we get a palindrome (43343222234334).

The spelling of 22222002212112 in words is "twenty-two trillion, two hundred twenty-two billion, two million, two hundred twelve thousand, one hundred twelve".