22131333232 has 20 divisors (see below), whose sum is σ = 42884555560. Its totient is φ = 11064351168.

The previous prime is 22131333229. The next prime is 22131333241. The reversal of 22131333232 is 23233313122.

It is a junction number, because it is equal to n+sod(n) for n = 22131333197 and 22131333206.

It is a congruent number.

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, 64519 + ... + 220057.

It is an arithmetic number, because the mean of its divisors is an integer number (2144227778).

Almost surely, 2^22131333232 is an apocalyptic number.

It is an amenable number.

22131333232 is a deficient number, since it is larger than the sum of its proper divisors (20753222328).

22131333232 is a wasteful number, since it uses less digits than its factorization.

22131333232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164440 (or 164434 counting only the distinct ones).

The product of its digits is 3888, while the sum is 25.

Adding to 22131333232 its reverse (23233313122), we get a palindrome (45364646354).

The spelling of 22131333232 in words is "twenty-two billion, one hundred thirty-one million, three hundred thirty-three thousand, two hundred thirty-two".