22122031232 has 128 divisors (see below), whose sum is σ = 51857159040. Its totient is φ = 9201696768.

The previous prime is 22122031219. The next prime is 22122031277. The reversal of 22122031232 is 23213022122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22642328 + ... + 22643304.

It is an arithmetic number, because the mean of its divisors is an integer number (405134055).

Almost surely, 2^22122031232 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 22122031232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25928579520).

22122031232 is an abundant number, since it is smaller than the sum of its proper divisors (29735127808).

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

22122031232 is an equidigital number, since it uses as much as digits as its factorization.

22122031232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718 (or 1706 counting only the distinct ones).

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

Adding to 22122031232 its reverse (23213022122), we get a palindrome (45335053354).

The spelling of 22122031232 in words is "twenty-two billion, one hundred twenty-two million, thirty-one thousand, two hundred thirty-two".