22512113532 has 72 divisors (see below), whose sum is σ = 58280302080. Its totient is φ = 7323069600.

The previous prime is 22512113497. The next prime is 22512113543. The reversal of 22512113532 is 23531121522.

22512113532 is a `hidden beast` number, since 2 + 2 + 5 + 12 + 113 + 532 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 22512113496 and 22512113505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1943157 + ... + 1954707.

It is an arithmetic number, because the mean of its divisors is an integer number (809448640).

Almost surely, 2^22512113532 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 22512113532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29140151040).

22512113532 is an abundant number, since it is smaller than the sum of its proper divisors (35768188548).

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

22512113532 is a wasteful number, since it uses less digits than its factorization.

22512113532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12863 (or 12858 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The spelling of 22512113532 in words is "twenty-two billion, five hundred twelve million, one hundred thirteen thousand, five hundred thirty-two".