120122322421 has 4 divisors (see below), whose sum is σ = 124264471500. Its totient is φ = 115980173344.

The previous prime is 120122322413. The next prime is 120122322427. The reversal of 120122322421 is 124223221021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27654027025 + 92468295396 = 166295^2 + 304086^2 .

It is a cyclic number.

It is not a de Polignac number, because 120122322421 - 2³ = 120122322413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120122322392 and 120122322401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120122322427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2071074496 + ... + 2071074553.

It is an arithmetic number, because the mean of its divisors is an integer number (31066117875).

Almost surely, 2^120122322421 is an apocalyptic number.

It is an amenable number.

120122322421 is a deficient number, since it is larger than the sum of its proper divisors (4142149079).

120122322421 is an equidigital number, since it uses as much as digits as its factorization.

120122322421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4142149078.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 120122322421 its reverse (124223221021), we get a palindrome (244345543442).

The spelling of 120122322421 in words is "one hundred twenty billion, one hundred twenty-two million, three hundred twenty-two thousand, four hundred twenty-one".