122111221323 has 128 divisors (see below), whose sum is σ = 218836574208. Its totient is φ = 58732314624.

The previous prime is 122111221283. The next prime is 122111221343. The reversal of 122111221323 is 323122111221.

It is not a de Polignac number, because 122111221323 - 2¹⁴ = 122111204939 is a prime.

It is a super-2 number, since 2×122111221323² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 122111221323.

It is not an unprimeable number, because it can be changed into a prime (122111221343) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 44129886 + ... + 44132652.

It is an arithmetic number, because the mean of its divisors is an integer number (1709660736).

Almost surely, 2^122111221323 is an apocalyptic number.

122111221323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

122111221323 is a deficient number, since it is larger than the sum of its proper divisors (96725352885).

122111221323 is a wasteful number, since it uses less digits than its factorization.

122111221323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3101.

The product of its digits is 288, while the sum is 21.

Adding to 122111221323 its reverse (323122111221), we get a palindrome (445233332544).

The spelling of 122111221323 in words is "one hundred twenty-two billion, one hundred eleven million, two hundred twenty-one thousand, three hundred twenty-three".