120102120100 has 18 divisors (see below), whose sum is σ = 260621600834. Its totient is φ = 48040848000.

The previous prime is 120102120071. The next prime is 120102120101. The reversal of 120102120100 is 1021201021.

It can be written as a sum of positive squares in 3 ways, for example, as 1722084004 + 118380036096 = 41498^2 + 344064^2 .

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

It is not an unprimeable number, because it can be changed into a prime (120102120101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 600510501 + ... + 600510700.

Almost surely, 2^120102120100 is an apocalyptic number.

120102120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120102120100 is an abundant number, since it is smaller than the sum of its proper divisors (140519480734).

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

120102120100 is a wasteful number, since it uses less digits than its factorization.

120102120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201021215 (or 1201021208 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 120102120100 its reverse (1021201021), we get a palindrome (121123321121).

The spelling of 120102120100 in words is "one hundred twenty billion, one hundred two million, one hundred twenty thousand, one hundred".