2122915231 has 2 divisors, whose sum is σ = 2122915232. Its totient is φ = 2122915230.

The previous prime is 2122915213. The next prime is 2122915243. The reversal of 2122915231 is 1325192212.

Together with previous prime (2122915213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2122915231 - 2⁵ = 2122915199 is a prime.

It is a super-2 number, since 2×2122915231² = 9013538156023566722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2122915231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122915211) 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 as a sum of consecutive naturals, namely, 1061457615 + 1061457616.

It is an arithmetic number, because the mean of its divisors is an integer number (1061457616).

Almost surely, 2^2122915231 is an apocalyptic number.

2122915231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122915231 is an equidigital number, since it uses as much as digits as its factorization.

2122915231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 2122915231 is about 46075.1042429640. The cubic root of 2122915231 is about 1285.2202241824.

The spelling of 2122915231 in words is "two billion, one hundred twenty-two million, nine hundred fifteen thousand, two hundred thirty-one".