22521213532 has 48 divisors (see below), whose sum is σ = 42458734080. Its totient is φ = 10418889600.

The previous prime is 22521213509. The next prime is 22521213563. The reversal of 22521213532 is 23531212522.

It is a self number, because there is not a number n which added to its sum of digits gives 22521213532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1747432 + ... + 1760272.

It is an arithmetic number, because the mean of its divisors is an integer number (884556960).

Almost surely, 2^22521213532 is an apocalyptic number.

It is an amenable number.

22521213532 is a deficient number, since it is larger than the sum of its proper divisors (19937520548).

22521213532 is a wasteful number, since it uses less digits than its factorization.

22521213532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13402 (or 13400 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The spelling of 22521213532 in words is "twenty-two billion, five hundred twenty-one million, two hundred thirteen thousand, five hundred thirty-two".