120200020100 has 18 divisors (see below), whose sum is σ = 260834043834. Its totient is φ = 48080008000.

The previous prime is 120200020063. The next prime is 120200020133. The reversal of 120200020100 is 1020002021.

It can be written as a sum of positive squares in 3 ways, for example, as 27843594496 + 92356425604 = 166864^2 + 303902^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 601000001 + ... + 601000200.

It is an arithmetic number, because the mean of its divisors is an integer number (14490780213).

Almost surely, 2^120200020100 is an apocalyptic number.

120200020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120200020100 is an abundant number, since it is smaller than the sum of its proper divisors (140634023734).

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

120200020100 is a wasteful number, since it uses less digits than its factorization.

120200020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202000215 (or 1202000208 counting only the distinct ones).

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

Adding to 120200020100 its reverse (1020002021), we get a palindrome (121220022121).

The spelling of 120200020100 in words is "one hundred twenty billion, two hundred million, twenty thousand, one hundred".