22521121332 has 48 divisors (see below), whose sum is σ = 53522582400. Its totient is φ = 7368923520.

The previous prime is 22521121279. The next prime is 22521121379. The reversal of 22521121332 is 23312112522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137394 + ... + 252822.

It is an arithmetic number, because the mean of its divisors is an integer number (1115053800).

Almost surely, 2^22521121332 is an apocalyptic number.

It is an amenable number.

22521121332 is an abundant number, since it is smaller than the sum of its proper divisors (31001461068).

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

22521121332 is a wasteful number, since it uses less digits than its factorization.

22521121332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115736 (or 115734 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

Adding to 22521121332 its reverse (23312112522), we get a palindrome (45833233854).

The spelling of 22521121332 in words is "twenty-two billion, five hundred twenty-one million, one hundred twenty-one thousand, three hundred thirty-two".