22005231332 has 96 divisors (see below), whose sum is σ = 46423480320. Its totient is φ = 8928092160.

The previous prime is 22005231323. The next prime is 22005231373. The reversal of 22005231332 is 23313250022.

It is a junction number, because it is equal to n+sod(n) for n = 22005231298 and 22005231307.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26543894 + ... + 26544722.

It is an arithmetic number, because the mean of its divisors is an integer number (483577920).

Almost surely, 2^22005231332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22005231332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23211740160).

22005231332 is an abundant number, since it is smaller than the sum of its proper divisors (24418248988).

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

22005231332 is a wasteful number, since it uses less digits than its factorization.

22005231332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501 (or 1499 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 22005231332 its reverse (23313250022), we get a palindrome (45318481354).

The spelling of 22005231332 in words is "twenty-two billion, five million, two hundred thirty-one thousand, three hundred thirty-two".