12213330231131 has 4 divisors (see below), whose sum is σ = 12215821227312. Its totient is φ = 12210839234952.

The previous prime is 12213330231097. The next prime is 12213330231133. The reversal of 12213330231131 is 13113203331221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12213330231131 - 2³⁴ = 12196150361947 is a prime.

It is a super-2 number, since 2×12213330231131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12213330231131.

It is not an unprimeable number, because it can be changed into a prime (12213330231133) 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, 1245490736 + ... + 1245500541.

It is an arithmetic number, because the mean of its divisors is an integer number (3053955306828).

Almost surely, 2^{12213330231131} is an apocalyptic number.

12213330231131 is a deficient number, since it is larger than the sum of its proper divisors (2490996181).

12213330231131 is an equidigital number, since it uses as much as digits as its factorization.

12213330231131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490996180.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 12213330231131 its reverse (13113203331221), we get a palindrome (25326533562352).

The spelling of 12213330231131 in words is "twelve trillion, two hundred thirteen billion, three hundred thirty million, two hundred thirty-one thousand, one hundred thirty-one".