12213312131291 has 4 divisors (see below), whose sum is σ = 12214080811800. Its totient is φ = 12212543450784.

The previous prime is 12213312131281. The next prime is 12213312131303. The reversal of 12213312131291 is 19213121331221.

It is a happy number.

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 12213312131291 - 2³⁰ = 12212238389467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12213312131231) 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, 384316421 + ... + 384348198.

It is an arithmetic number, because the mean of its divisors is an integer number (3053520202950).

Almost surely, 2^{12213312131291} is an apocalyptic number.

12213312131291 is a deficient number, since it is larger than the sum of its proper divisors (768680509).

12213312131291 is an equidigital number, since it uses as much as digits as its factorization.

12213312131291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768680508.

The product of its digits is 3888, while the sum is 32.

The spelling of 12213312131291 in words is "twelve trillion, two hundred thirteen billion, three hundred twelve million, one hundred thirty-one thousand, two hundred ninety-one".