2122959977531 has 2 divisors, whose sum is σ = 2122959977532. Its totient is φ = 2122959977530.

The previous prime is 2122959977513. The next prime is 2122959977573. The reversal of 2122959977531 is 1357799592212.

Together with previous prime (2122959977513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2122959977531 - 2¹⁴ = 2122959961147 is a prime.

It is a super-2 number, since 2×2122959977531² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2122959917531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061479988765 + 1061479988766.

It is an arithmetic number, because the mean of its divisors is an integer number (1061479988766).

Almost surely, 2^{2122959977531} is an apocalyptic number.

2122959977531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122959977531 is an equidigital number, since it uses as much as digits as its factorization.

2122959977531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21432600, while the sum is 62.

The spelling of 2122959977531 in words is "two trillion, one hundred twenty-two billion, nine hundred fifty-nine million, nine hundred seventy-seven thousand, five hundred thirty-one".