22131312239 has 2 divisors, whose sum is σ = 22131312240. Its totient is φ = 22131312238.

The previous prime is 22131312193. The next prime is 22131312337. The reversal of 22131312239 is 93221313122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22131312239 is a prime.

It is a super-2 number, since 2×22131312239² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22131312739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11065656119 + 11065656120.

It is an arithmetic number, because the mean of its divisors is an integer number (11065656120).

Almost surely, 2^22131312239 is an apocalyptic number.

22131312239 is a deficient number, since it is larger than the sum of its proper divisors (1).

22131312239 is an equidigital number, since it uses as much as digits as its factorization.

22131312239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 29.

The spelling of 22131312239 in words is "twenty-two billion, one hundred thirty-one million, three hundred twelve thousand, two hundred thirty-nine".