12210312113 has 4 divisors (see below), whose sum is σ = 12232882548. Its totient is φ = 12187741680.

The previous prime is 12210312089. The next prime is 12210312143. The reversal of 12210312113 is 31121301221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31121301221 = 76871 ⋅404851.

It can be written as a sum of positive squares in 2 ways, for example, as 2431673344 + 9778638769 = 49312^2 + 98887^2 .

It is a cyclic number.

It is not a de Polignac number, because 12210312113 - 2⁸ = 12210311857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12210312091 and 12210312100.

It is not an unprimeable number, because it can be changed into a prime (12210312143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11284406 + ... + 11285487.

It is an arithmetic number, because the mean of its divisors is an integer number (3058220637).

Almost surely, 2^12210312113 is an apocalyptic number.

It is an amenable number.

12210312113 is a deficient number, since it is larger than the sum of its proper divisors (22570435).

12210312113 is an equidigital number, since it uses as much as digits as its factorization.

12210312113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22570434.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12210312113 its reverse (31121301221), we get a palindrome (43331613334).

The spelling of 12210312113 in words is "twelve billion, two hundred ten million, three hundred twelve thousand, one hundred thirteen".