120112020021 has 32 divisors (see below), whose sum is σ = 190802681856. Its totient is φ = 65763720000.

The previous prime is 120112019977. The next prime is 120112020023. The reversal of 120112020021 is 120020211021.

It is not a de Polignac number, because 120112020021 - 2⁷ = 120112019893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120112019979 and 120112020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120112020023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 847635 + ... + 979136.

It is an arithmetic number, because the mean of its divisors is an integer number (5962583808).

Almost surely, 2^120112020021 is an apocalyptic number.

It is an amenable number.

120112020021 is a deficient number, since it is larger than the sum of its proper divisors (70690661835).

120112020021 is a wasteful number, since it uses less digits than its factorization.

120112020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826913.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120112020021 its reverse (120020211021), we get a palindrome (240132231042).

The spelling of 120112020021 in words is "one hundred twenty billion, one hundred twelve million, twenty thousand, twenty-one".