22112103312 has 90 divisors (see below), whose sum is σ = 67009668882. Its totient is φ = 6803716608.

The previous prime is 22112103259. The next prime is 22112103319. The reversal of 22112103312 is 21330121122.

It can be written as a sum of positive squares in 3 ways, for example, as 1070860176 + 21041243136 = 32724^2 + 145056^2 .

It is a super-2 number, since 2×22112103312² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22112103319) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 429973 + ... + 478644.

Almost surely, 2^22112103312 is an apocalyptic number.

It is an amenable number.

22112103312 is an abundant number, since it is smaller than the sum of its proper divisors (44897565570).

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

22112103312 is a wasteful number, since it uses less digits than its factorization.

22112103312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908657 (or 908635 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 22112103312 its reverse (21330121122), we get a palindrome (43442224434).

The spelling of 22112103312 in words is "twenty-two billion, one hundred twelve million, one hundred three thousand, three hundred twelve".