212122130111331 has 16 divisors (see below), whose sum is σ = 309714440935680. Its totient is φ = 128070049745120.

The previous prime is 212122130111321. The next prime is 212122130111351. The reversal of 212122130111331 is 133111031221212.

It is a cyclic number.

It is not a de Polignac number, because 212122130111331 - 2¹³ = 212122130103139 is a prime.

It is a super-2 number, since 2×212122130111331² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212122130111321) 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 in 15 ways as a sum of consecutive naturals, for example, 12220415916 + ... + 12220433273.

It is an arithmetic number, because the mean of its divisors is an integer number (19357152558480).

Almost surely, 2^{212122130111331} is an apocalyptic number.

212122130111331 is a deficient number, since it is larger than the sum of its proper divisors (97592310824349).

212122130111331 is a wasteful number, since it uses less digits than its factorization.

212122130111331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24440849466.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 212122130111331 its reverse (133111031221212), we get a palindrome (345233161332543).

The spelling of 212122130111331 in words is "two hundred twelve trillion, one hundred twenty-two billion, one hundred thirty million, one hundred eleven thousand, three hundred thirty-one".