22131233112 has 32 divisors (see below), whose sum is σ = 55350604080. Its totient is φ = 7374074880.

The previous prime is 22131233087. The next prime is 22131233153. The reversal of 22131233112 is 21133213122.

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, 127089 + ... + 245792.

Almost surely, 2^22131233112 is an apocalyptic number.

It is an amenable number.

22131233112 is an abundant number, since it is smaller than the sum of its proper divisors (33219370968).

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

22131233112 is a wasteful number, since it uses less digits than its factorization.

22131233112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375363 (or 375359 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 22131233112 its reverse (21133213122), we get a palindrome (43264446234).

The spelling of 22131233112 in words is "twenty-two billion, one hundred thirty-one million, two hundred thirty-three thousand, one hundred twelve".