120121022020 has 24 divisors (see below), whose sum is σ = 258120523584. Its totient is φ = 46931003616.

The previous prime is 120121021927. The next prime is 120121022029. The reversal of 120121022020 is 20220121021.

It is a happy number.

It is a super-2 number, since 2×120121022020² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120121022029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69836944 + ... + 69838663.

It is an arithmetic number, because the mean of its divisors is an integer number (10755021816).

Almost surely, 2^120121022020 is an apocalyptic number.

120121022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120121022020 is an abundant number, since it is smaller than the sum of its proper divisors (137999501564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120121022020 is a wasteful number, since it uses less digits than its factorization.

120121022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139675659 (or 139675657 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 120121022020 its reverse (20220121021), we get a palindrome (140341143041).

Subtracting from 120121022020 its reverse (20220121021), we obtain a palindrome (99900900999).

The spelling of 120121022020 in words is "one hundred twenty billion, one hundred twenty-one million, twenty-two thousand, twenty".