22452204522520 has 32 divisors (see below), whose sum is σ = 50526106510320. Its totient is φ = 8979344682880.

The previous prime is 22452204522487. The next prime is 22452204522523. The reversal of 22452204522520 is 2522540225422.

It is a self number, because there is not a number n which added to its sum of digits gives 22452204522520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22452204522523) 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, 47798551 + ... + 48265990.

Almost surely, 2^{22452204522520} is an apocalyptic number.

22452204522520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22452204522520 is an abundant number, since it is smaller than the sum of its proper divisors (28073901987800).

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

22452204522520 is a wasteful number, since it uses less digits than its factorization.

22452204522520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96070395 (or 96070391 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 37.

Adding to 22452204522520 its reverse (2522540225422), we get a palindrome (24974744747942).

The spelling of 22452204522520 in words is "twenty-two trillion, four hundred fifty-two billion, two hundred four million, five hundred twenty-two thousand, five hundred twenty".