12213302131 has 4 divisors (see below), whose sum is σ = 12221674600. Its totient is φ = 12204929664.

The previous prime is 12213302089. The next prime is 12213302161. The reversal of 12213302131 is 13120331221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13120331221 = 31 ⋅423236491.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12213302131 is a prime.

It is a super-2 number, since 2×12213302131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12213302099 and 12213302108.

It is not an unprimeable number, because it can be changed into a prime (12213302161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4184046 + ... + 4186963.

It is an arithmetic number, because the mean of its divisors is an integer number (3055418650).

Almost surely, 2^12213302131 is an apocalyptic number.

12213302131 is a deficient number, since it is larger than the sum of its proper divisors (8372469).

12213302131 is an equidigital number, since it uses as much as digits as its factorization.

12213302131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8372468.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12213302131 its reverse (13120331221), we get a palindrome (25333633352).

The spelling of 12213302131 in words is "twelve billion, two hundred thirteen million, three hundred two thousand, one hundred thirty-one".