12227518131 has 16 divisors (see below), whose sum is σ = 16752456864. Its totient is φ = 7927352064.

The previous prime is 12227518111. The next prime is 12227518183. The reversal of 12227518131 is 13181572221.

It is not a de Polignac number, because 12227518131 - 2⁵ = 12227518099 is a prime.

It is a super-2 number, since 2×12227518131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12227518092 and 12227518101.

It is not an unprimeable number, because it can be changed into a prime (12227518111) 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, 201055 + ... + 254711.

It is an arithmetic number, because the mean of its divisors is an integer number (1047028554).

Almost surely, 2^12227518131 is an apocalyptic number.

12227518131 is a deficient number, since it is larger than the sum of its proper divisors (4524938733).

12227518131 is a wasteful number, since it uses less digits than its factorization.

12227518131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55750.

The product of its digits is 6720, while the sum is 33.

The spelling of 12227518131 in words is "twelve billion, two hundred twenty-seven million, five hundred eighteen thousand, one hundred thirty-one".