22521031125531 has 8 divisors (see below), whose sum is σ = 30035847089664. Its totient is φ = 15010117955880.

The previous prime is 22521031125511. The next prime is 22521031125563. The reversal of 22521031125531 is 13552113012522.

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

It is not a de Polignac number, because 22521031125531 - 2¹⁰ = 22521031124507 is a prime.

It is a super-2 number, since 2×22521031125531² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22521031125492 and 22521031125501.

It is not an unprimeable number, because it can be changed into a prime (22521031125511) 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, 975685155 + ... + 975708236.

It is an arithmetic number, because the mean of its divisors is an integer number (3754480886208).

Almost surely, 2^{22521031125531} is an apocalyptic number.

22521031125531 is a deficient number, since it is larger than the sum of its proper divisors (7514815964133).

22521031125531 is a wasteful number, since it uses less digits than its factorization.

22521031125531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951397241.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 22521031125531 in words is "twenty-two trillion, five hundred twenty-one billion, thirty-one million, one hundred twenty-five thousand, five hundred thirty-one".