123020032223221 has 16 divisors (see below), whose sum is σ = 145674961660800. Its totient is φ = 101702704678848.

The previous prime is 123020032223213. The next prime is 123020032223237. The reversal of 123020032223221 is 122322230020321.

It is not a de Polignac number, because 123020032223221 - 2³ = 123020032223213 is a prime.

It is a super-2 number, since 2×123020032223221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123020032223321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2810066106 + ... + 2810109883.

It is an arithmetic number, because the mean of its divisors is an integer number (9104685103800).

Almost surely, 2^{123020032223221} is an apocalyptic number.

It is an amenable number.

123020032223221 is a deficient number, since it is larger than the sum of its proper divisors (22654929437579).

123020032223221 is an equidigital number, since it uses as much as digits as its factorization.

123020032223221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5620176108.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 123020032223221 its reverse (122322230020321), we get a palindrome (245342262243542).

The spelling of 123020032223221 in words is "one hundred twenty-three trillion, twenty billion, thirty-two million, two hundred twenty-three thousand, two hundred twenty-one".