22400023112 has 16 divisors (see below), whose sum is σ = 42037660860. Its totient is φ = 11189980224.

The previous prime is 22400023103. The next prime is 22400023169. The reversal of 22400023112 is 21132000422.

It can be written as a sum of positive squares in 2 ways, for example, as 22399911556 + 111556 = 149666^2 + 334^2 .

It is a super-2 number, since 2×22400023112² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1244423 + ... + 1262294.

Almost surely, 2^22400023112 is an apocalyptic number.

It is an amenable number.

22400023112 is a deficient number, since it is larger than the sum of its proper divisors (19637637748).

22400023112 is a wasteful number, since it uses less digits than its factorization.

22400023112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2507840 (or 2507836 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22400023112 its reverse (21132000422), we get a palindrome (43532023534).

The spelling of 22400023112 in words is "twenty-two billion, four hundred million, twenty-three thousand, one hundred twelve".