122112021213111 has 16 divisors (see below), whose sum is σ = 163409312521728. Its totient is φ = 81111778665600.

The previous prime is 122112021213029. The next prime is 122112021213139. The reversal of 122112021213111 is 111312120211221.

It is not a de Polignac number, because 122112021213111 - 2⁷ = 122112021212983 is a prime.

It is a super-2 number, since 2×122112021213111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112021213811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49628370 + ... + 52030751.

It is an arithmetic number, because the mean of its divisors is an integer number (10213082032608).

Almost surely, 2^{122112021213111} is an apocalyptic number.

122112021213111 is a deficient number, since it is larger than the sum of its proper divisors (41297291308617).

122112021213111 is a wasteful number, since it uses less digits than its factorization.

122112021213111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101660582.

The product of its (nonzero) digits is 96, while the sum is 21.

Adding to 122112021213111 its reverse (111312120211221), we get a palindrome (233424141424332).

The spelling of 122112021213111 in words is "one hundred twenty-two trillion, one hundred twelve billion, twenty-one million, two hundred thirteen thousand, one hundred eleven".