120200100020 has 96 divisors (see below), whose sum is σ = 338913904896. Its totient is φ = 34583040000.

The previous prime is 120200100001. The next prime is 120200100043. The reversal of 120200100020 is 20001002021.

It is a junction number, because it is equal to n+sod(n) for n = 120200099980 and 120200100007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2981981 + ... + 3022020.

It is an arithmetic number, because the mean of its divisors is an integer number (3530353176).

Almost surely, 2^120200100020 is an apocalyptic number.

120200100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120200100020 is an abundant number, since it is smaller than the sum of its proper divisors (218713804876).

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

120200100020 is a wasteful number, since it uses less digits than its factorization.

120200100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6004041 (or 6004039 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 120200100020 its reverse (20001002021), we get a palindrome (140201102041).

The spelling of 120200100020 in words is "one hundred twenty billion, two hundred million, one hundred thousand, twenty".