22563642304021 has 16 divisors (see below), whose sum is σ = 27936927938304. Its totient is φ = 17745650630784.

The previous prime is 22563642304013. The next prime is 22563642304039. The reversal of 22563642304021 is 12040324636522.

It is a cyclic number.

It is not a de Polignac number, because 22563642304021 - 2³ = 22563642304013 is a prime.

It is a super-2 number, since 2×22563642304021² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22563642604021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 742356400 + ... + 742386793.

It is an arithmetic number, because the mean of its divisors is an integer number (1746057996144).

Almost surely, 2^{22563642304021} is an apocalyptic number.

It is an amenable number.

22563642304021 is a deficient number, since it is larger than the sum of its proper divisors (5373285634283).

22563642304021 is a wasteful number, since it uses less digits than its factorization.

22563642304021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484743380.

The product of its (nonzero) digits is 414720, while the sum is 40.

The spelling of 22563642304021 in words is "twenty-two trillion, five hundred sixty-three billion, six hundred forty-two million, three hundred four thousand, twenty-one".