12221203113 has 72 divisors (see below), whose sum is σ = 21146598720. Its totient is φ = 6654634560.

The previous prime is 12221203097. The next prime is 12221203177. The reversal of 12221203113 is 31130212221.

It is not a de Polignac number, because 12221203113 - 2⁴ = 12221203097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12221204113) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 12585718 + ... + 12586688.

It is an arithmetic number, because the mean of its divisors is an integer number (293702760).

Almost surely, 2^12221203113 is an apocalyptic number.

It is an amenable number.

12221203113 is a deficient number, since it is larger than the sum of its proper divisors (8925395607).

12221203113 is an equidigital number, since it uses as much as digits as its factorization.

12221203113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179 (or 1093 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12221203113 its reverse (31130212221), we get a palindrome (43351415334).

The spelling of 12221203113 in words is "twelve billion, two hundred twenty-one million, two hundred three thousand, one hundred thirteen".