120120200020 has 12 divisors (see below), whose sum is σ = 252252420084. Its totient is φ = 48048080000.

The previous prime is 120120200009. The next prime is 120120200033. The reversal of 120120200020 is 20002021021.

It can be written as a sum of positive squares in 2 ways, for example, as 32416562116 + 87703637904 = 180046^2 + 296148^2 .

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3003004981 + ... + 3003005020.

It is an arithmetic number, because the mean of its divisors is an integer number (21021035007).

Almost surely, 2^120120200020 is an apocalyptic number.

120120200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120120200020 is an abundant number, since it is smaller than the sum of its proper divisors (132132220064).

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

120120200020 is a wasteful number, since it uses less digits than its factorization.

120120200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6006010010 (or 6006010008 counting only the distinct ones).

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

Adding to 120120200020 its reverse (20002021021), we get a palindrome (140122221041).

The spelling of 120120200020 in words is "one hundred twenty billion, one hundred twenty million, two hundred thousand, twenty".