22131202232 has 32 divisors (see below), whose sum is σ = 43316553600. Its totient is φ = 10580485344.

The previous prime is 22131202153. The next prime is 22131202243. The reversal of 22131202232 is 23220213122.

It is a happy number.

It is a super-2 number, since 2×22131202232² (a number of 21 digits) contains 22 as substring.

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, 497363 + ... + 540029.

It is an arithmetic number, because the mean of its divisors is an integer number (1353642300).

Almost surely, 2^22131202232 is an apocalyptic number.

It is an amenable number.

22131202232 is a deficient number, since it is larger than the sum of its proper divisors (21185351368).

22131202232 is a wasteful number, since it uses less digits than its factorization.

22131202232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45515 (or 45511 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22131202232 its reverse (23220213122), we get a palindrome (45351415354).

The spelling of 22131202232 in words is "twenty-two billion, one hundred thirty-one million, two hundred two thousand, two hundred thirty-two".