120020112121 has 16 divisors (see below), whose sum is σ = 149151218944. Its totient is φ = 94039009344.

The previous prime is 120020112083. The next prime is 120020112127. The reversal of 120020112121 is 121211020021.

It is not a de Polignac number, because 120020112121 - 2⁷ = 120020111993 is a prime.

It is a super-2 number, since 2×120020112121² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (120020112127) 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, 6393066 + ... + 6411811.

It is an arithmetic number, because the mean of its divisors is an integer number (9321951184).

Almost surely, 2^120020112121 is an apocalyptic number.

It is an amenable number.

120020112121 is a deficient number, since it is larger than the sum of its proper divisors (29131106823).

120020112121 is a wasteful number, since it uses less digits than its factorization.

120020112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12805000.

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

Adding to 120020112121 its reverse (121211020021), we get a palindrome (241231132142).

The spelling of 120020112121 in words is "one hundred twenty billion, twenty million, one hundred twelve thousand, one hundred twenty-one".