120122001010021 has 16 divisors (see below), whose sum is σ = 127829350800000. Its totient is φ = 112485931987968.

The previous prime is 120122001010019. The next prime is 120122001010057. The reversal of 120122001010021 is 120010100221021.

It is not a de Polignac number, because 120122001010021 - 2¹ = 120122001010019 is a prime.

It is a super-2 number, since 2×120122001010021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120122001009983 and 120122001010010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120122001010421) 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, 217924861 + ... + 218475373.

It is an arithmetic number, because the mean of its divisors is an integer number (7989334425000).

Almost surely, 2^{120122001010021} is an apocalyptic number.

It is an amenable number.

120122001010021 is a deficient number, since it is larger than the sum of its proper divisors (7707349789979).

120122001010021 is a wasteful number, since it uses less digits than its factorization.

120122001010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615228.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120122001010021 its reverse (120010100221021), we get a palindrome (240132101231042).

The spelling of 120122001010021 in words is "one hundred twenty trillion, one hundred twenty-two billion, one million, ten thousand, twenty-one".