22521351343116 has 12 divisors (see below), whose sum is σ = 52549819800632. Its totient is φ = 7507117114368.

The previous prime is 22521351343109. The next prime is 22521351343129. The reversal of 22521351343116 is 61134315312522.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×22521351343116² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938389639285 + ... + 938389639308.

Almost surely, 2^{22521351343116} is an apocalyptic number.

It is an amenable number.

22521351343116 is an abundant number, since it is smaller than the sum of its proper divisors (30028468457516).

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

22521351343116 is a wasteful number, since it uses less digits than its factorization.

22521351343116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876779278600 (or 1876779278598 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

Adding to 22521351343116 its reverse (61134315312522), we get a palindrome (83655666655638).

The spelling of 22521351343116 in words is "twenty-two trillion, five hundred twenty-one billion, three hundred fifty-one million, three hundred forty-three thousand, one hundred sixteen".