22515020452000 has 48 divisors (see below), whose sum is σ = 55319405260392. Its totient is φ = 9006008179200.

The previous prime is 22515020451919. The next prime is 22515020452007. The reversal of 22515020452000 is 25402051522.

It can be written as a sum of positive squares in 4 ways, for example, as 1104743940624 + 21410276511376 = 1051068^2 + 4627124^2 .

It is a super-2 number, since 2×22515020452000² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22515020452000.

It is not an unprimeable number, because it can be changed into a prime (22515020452007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2814373557 + ... + 2814381556.

Almost surely, 2^{22515020452000} is an apocalyptic number.

22515020452000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22515020452000 is an abundant number, since it is smaller than the sum of its proper divisors (32804384808392).

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

22515020452000 is an equidigital number, since it uses as much as digits as its factorization.

22515020452000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5628755138 (or 5628755120 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The spelling of 22515020452000 in words is "twenty-two trillion, five hundred fifteen billion, twenty million, four hundred fifty-two thousand".