123002100220122 has 20 divisors (see below), whose sum is σ = 275615817160266. Its totient is φ = 41000700073320.

The previous prime is 123002100220093. The next prime is 123002100220127. The reversal of 123002100220122 is 221022001200321.

123002100220122 is a `hidden beast` number, since 1 + 2 + 300 + 21 + 0 + 0 + 220 + 122 = 666.

It can be written as a sum of positive squares in only one way, i.e., 120165641316081 + 2836458904041 = 10962009^2 + 1684179^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 123002100220095 and 123002100220104.

It is not an unprimeable number, because it can be changed into a prime (123002100220127) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 379636111629 + ... + 379636111952.

Almost surely, 2^{123002100220122} is an apocalyptic number.

123002100220122 is an abundant number, since it is smaller than the sum of its proper divisors (152613716940144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123002100220122 is an equidigital number, since it uses as much as digits as its factorization.

123002100220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759272223595 (or 759272223586 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 123002100220122 its reverse (221022001200321), we get a palindrome (344024101420443).

The spelling of 123002100220122 in words is "one hundred twenty-three trillion, two billion, one hundred million, two hundred twenty thousand, one hundred twenty-two".