13222136525 has 24 divisors (see below), whose sum is σ = 17905353984. Its totient is φ = 9626500800.

The previous prime is 13222136513. The next prime is 13222136527. The reversal of 13222136525 is 52563122231.

It is not a de Polignac number, because 13222136525 - 2²⁰ = 13221087949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13222136491 and 13222136500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222136527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 263429 + ... + 309578.

It is an arithmetic number, because the mean of its divisors is an integer number (746056416).

Almost surely, 2^13222136525 is an apocalyptic number.

It is an amenable number.

13222136525 is a deficient number, since it is larger than the sum of its proper divisors (4683217459).

13222136525 is a wasteful number, since it uses less digits than its factorization.

13222136525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573101 (or 573096 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

Adding to 13222136525 its reverse (52563122231), we get a palindrome (65785258756).

The spelling of 13222136525 in words is "thirteen billion, two hundred twenty-two million, one hundred thirty-six thousand, five hundred twenty-five".