120442212420051 has 4 divisors (see below), whose sum is σ = 160589616560072. Its totient is φ = 80294808280032.

The previous prime is 120442212420011. The next prime is 120442212420073. The reversal of 120442212420051 is 150024212244021.

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

It is not a de Polignac number, because 120442212420051 - 2³⁰ = 120441138678227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120442212420011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20073702070006 + ... + 20073702070011.

It is an arithmetic number, because the mean of its divisors is an integer number (40147404140018).

Almost surely, 2^{120442212420051} is an apocalyptic number.

120442212420051 is a deficient number, since it is larger than the sum of its proper divisors (40147404140021).

120442212420051 is an equidigital number, since it uses as much as digits as its factorization.

120442212420051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40147404140020.

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 120442212420051 its reverse (150024212244021), we get a palindrome (270466424664072).

The spelling of 120442212420051 in words is "one hundred twenty trillion, four hundred forty-two billion, two hundred twelve million, four hundred twenty thousand, fifty-one".