120020100002020 has 96 divisors (see below), whose sum is σ = 255759711217920. Its totient is φ = 47304712143360.

The previous prime is 120020100002003. The next prime is 120020100002057. The reversal of 120020100002020 is 20200001020021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 120020100001988 and 120020100002006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1838144494 + ... + 1838209786.

It is an arithmetic number, because the mean of its divisors is an integer number (2664163658520).

Almost surely, 2^{120020100002020} is an apocalyptic number.

120020100002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120020100002020 is an abundant number, since it is smaller than the sum of its proper divisors (135739611215900).

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

120020100002020 is a wasteful number, since it uses less digits than its factorization.

120020100002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69845 (or 69843 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 120020100002020 its reverse (20200001020021), we get a palindrome (140220101022041).

The spelling of 120020100002020 in words is "one hundred twenty trillion, twenty billion, one hundred million, two thousand, twenty".