123121111213022 has 64 divisors (see below), whose sum is σ = 201368339553024. Its totient is φ = 56121786040320.

The previous prime is 123121111213021. The next prime is 123121111213039. The reversal of 123121111213022 is 220312111121321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123121111213021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 485594522 + ... + 485848002.

It is an arithmetic number, because the mean of its divisors is an integer number (3146380305516).

Almost surely, 2^{123121111213022} is an apocalyptic number.

123121111213022 is a deficient number, since it is larger than the sum of its proper divisors (78247228340002).

123121111213022 is a wasteful number, since it uses less digits than its factorization.

123121111213022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254373.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 123121111213022 its reverse (220312111121321), we get a palindrome (343433222334343).

The spelling of 123121111213022 in words is "one hundred twenty-three trillion, one hundred twenty-one billion, one hundred eleven million, two hundred thirteen thousand, twenty-two".