22502145031521 has 8 divisors (see below), whose sum is σ = 30813748151424. Its totient is φ = 14595985966320.

The previous prime is 22502145031507. The next prime is 22502145031571. The reversal of 22502145031521 is 12513054120522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22502145031521 - 2¹⁷ = 22502144900449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22502145031571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101361013545 + ... + 101361013766.

It is an arithmetic number, because the mean of its divisors is an integer number (3851718518928).

Almost surely, 2^{22502145031521} is an apocalyptic number.

It is an amenable number.

22502145031521 is a deficient number, since it is larger than the sum of its proper divisors (8311603119903).

22502145031521 is a wasteful number, since it uses less digits than its factorization.

22502145031521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202722027351.

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 22502145031521 in words is "twenty-two trillion, five hundred two billion, one hundred forty-five million, thirty-one thousand, five hundred twenty-one".