120100221002020 has 48 divisors (see below), whose sum is σ = 288906213068928. Its totient is φ = 41082121105920.

The previous prime is 120100221002011. The next prime is 120100221002023. The reversal of 120100221002020 is 20200122001021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (120100221002023) 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, 990538366 + ... + 990659605.

It is an arithmetic number, because the mean of its divisors is an integer number (6018879438936).

Almost surely, 2^{120100221002020} is an apocalyptic number.

120100221002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120100221002020 is an abundant number, since it is smaller than the sum of its proper divisors (168805992066908).

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

120100221002020 is a wasteful number, since it uses less digits than its factorization.

120100221002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981198420 (or 1981198418 counting only the distinct ones).

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

Adding to 120100221002020 its reverse (20200122001021), we get a palindrome (140300343003041).

Subtracting from 120100221002020 its reverse (20200122001021), we obtain a palindrome (99900099000999).

The spelling of 120100221002020 in words is "one hundred twenty trillion, one hundred billion, two hundred twenty-one million, two thousand, twenty".