122112111021213 has 32 divisors (see below), whose sum is σ = 177957071373312. Its totient is φ = 74146763059200.

The previous prime is 122112111021191. The next prime is 122112111021221. The reversal of 122112111021213 is 312120111211221.

It is not a de Polignac number, because 122112111021213 - 2⁵ = 122112111021181 is a prime.

It is a super-2 number, since 2×122112111021213² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122112111021213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112111021283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125300545 + ... + 126271337.

It is an arithmetic number, because the mean of its divisors is an integer number (5561158480416).

Almost surely, 2^{122112111021213} is an apocalyptic number.

It is an amenable number.

122112111021213 is a deficient number, since it is larger than the sum of its proper divisors (55844960352099).

122112111021213 is a wasteful number, since it uses less digits than its factorization.

122112111021213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050405.

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

Adding to 122112111021213 its reverse (312120111211221), we get a palindrome (434232222232434).

The spelling of 122112111021213 in words is "one hundred twenty-two trillion, one hundred twelve billion, one hundred eleven million, twenty-one thousand, two hundred thirteen".