12221032113 has 8 divisors (see below), whose sum is σ = 18105232800. Its totient is φ = 8147354724.

The previous prime is 12221032099. The next prime is 12221032147. The reversal of 12221032113 is 31123012221.

12221032113 is a `hidden beast` number, since 122 + 210 + 321 + 13 = 666.

12221032113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12221032113 - 2⁵ = 12221032081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12221032183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226315383 + ... + 226315436.

It is an arithmetic number, because the mean of its divisors is an integer number (2263154100).

Almost surely, 2^12221032113 is an apocalyptic number.

It is an amenable number.

12221032113 is a deficient number, since it is larger than the sum of its proper divisors (5884200687).

12221032113 is an equidigital number, since it uses as much as digits as its factorization.

12221032113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452630828 (or 452630822 counting only the distinct ones).

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

Adding to 12221032113 its reverse (31123012221), we get a palindrome (43344044334).

The spelling of 12221032113 in words is "twelve billion, two hundred twenty-one million, thirty-two thousand, one hundred thirteen".