120122121022021 has 4 divisors (see below), whose sum is σ = 120793194324000. Its totient is φ = 119451047720044.

The previous prime is 120122121021961. The next prime is 120122121022063. The reversal of 120122121022021 is 120220121221021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120122121022021 - 2⁹ = 120122121021509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120122121022021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120122121022121) 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, 335536650721 + ... + 335536651078.

It is an arithmetic number, because the mean of its divisors is an integer number (30198298581000).

Almost surely, 2^{120122121022021} is an apocalyptic number.

It is an amenable number.

120122121022021 is a deficient number, since it is larger than the sum of its proper divisors (671073301979).

120122121022021 is an equidigital number, since it uses as much as digits as its factorization.

120122121022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671073301978.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 120122121022021 its reverse (120220121221021), we get a palindrome (240342242243042).

The spelling of 120122121022021 in words is "one hundred twenty trillion, one hundred twenty-two billion, one hundred twenty-one million, twenty-two thousand, twenty-one".