22000231232 has 56 divisors (see below), whose sum is σ = 49913194560. Its totient is φ = 9424926720.

The previous prime is 22000231229. The next prime is 22000231247. The reversal of 22000231232 is 23213200022.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×22000231232² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22000231232.

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, 1322744 + ... + 1339272.

Almost surely, 2^22000231232 is an apocalyptic number.

It is an amenable number.

22000231232 is an abundant number, since it is smaller than the sum of its proper divisors (27912963328).

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

22000231232 is a wasteful number, since it uses less digits than its factorization.

22000231232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19519 (or 19509 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 22000231232 its reverse (23213200022), we get a palindrome (45213431254).

The spelling of 22000231232 in words is "twenty-two billion, two hundred thirty-one thousand, two hundred thirty-two".