12275899181 has 32 divisors (see below), whose sum is σ = 15831771648. Its totient is φ = 9251573760.

The previous prime is 12275899171. The next prime is 12275899199. The reversal of 12275899181 is 18199857221.

It is not a de Polignac number, because 12275899181 - 2³⁰ = 11202157357 is a prime.

It is a super-2 number, since 2×12275899181² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12275899171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 492245 + ... + 516581.

It is an arithmetic number, because the mean of its divisors is an integer number (494742864).

Almost surely, 2^12275899181 is an apocalyptic number.

It is an amenable number.

12275899181 is a deficient number, since it is larger than the sum of its proper divisors (3555872467).

12275899181 is a wasteful number, since it uses less digits than its factorization.

12275899181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24621.

The product of its digits is 725760, while the sum is 53.

The spelling of 12275899181 in words is "twelve billion, two hundred seventy-five million, eight hundred ninety-nine thousand, one hundred eighty-one".