22031323232 has 48 divisors (see below), whose sum is σ = 46518539760. Its totient is φ = 10238971392.

The previous prime is 22031323231. The next prime is 22031323243. The reversal of 22031323232 is 23232313022.

It is a junction number, because it is equal to n+sod(n) for n = 22031323198 and 22031323207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22031323231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309623 + ... + 374070.

It is an arithmetic number, because the mean of its divisors is an integer number (969136245).

Almost surely, 2^22031323232 is an apocalyptic number.

It is an amenable number.

22031323232 is an abundant number, since it is smaller than the sum of its proper divisors (24487216528).

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

22031323232 is a wasteful number, since it uses less digits than its factorization.

22031323232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683775 (or 683767 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 22031323232 its reverse (23232313022), we get a palindrome (45263636254).

The spelling of 22031323232 in words is "twenty-two billion, thirty-one million, three hundred twenty-three thousand, two hundred thirty-two".