20212522624 has 32 divisors (see below), whose sum is σ = 46019584800. Its totient is φ = 8662509312.

The previous prime is 20212522619. The next prime is 20212522697. The reversal of 20212522624 is 42622521202.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 20212522592 and 20212522601.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11278414 + ... + 11280205.

It is an arithmetic number, because the mean of its divisors is an integer number (1438112025).

Almost surely, 2^20212522624 is an apocalyptic number.

It is an amenable number.

20212522624 is an abundant number, since it is smaller than the sum of its proper divisors (25807062176).

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

20212522624 is an equidigital number, since it uses as much as digits as its factorization.

20212522624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22558640 (or 22558628 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The spelling of 20212522624 in words is "twenty billion, two hundred twelve million, five hundred twenty-two thousand, six hundred twenty-four".