2122106515531 has 2 divisors, whose sum is σ = 2122106515532. Its totient is φ = 2122106515530.

The previous prime is 2122106515519. The next prime is 2122106515553. The reversal of 2122106515531 is 1355156012212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2122106515531 - 2¹⁵ = 2122106482763 is a prime.

It is a super-2 number, since 2×2122106515531² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2122106515831) 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, 1061053257765 + 1061053257766.

It is an arithmetic number, because the mean of its divisors is an integer number (1061053257766).

Almost surely, 2^{2122106515531} is an apocalyptic number.

2122106515531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122106515531 is an equidigital number, since it uses as much as digits as its factorization.

2122106515531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 2122106515531 in words is "two trillion, one hundred twenty-two billion, one hundred six million, five hundred fifteen thousand, five hundred thirty-one".