120102100200 has 144 divisors (see below), whose sum is σ = 407875373100. Its totient is φ = 31667328000.

The previous prime is 120102100169. The next prime is 120102100241. The reversal of 120102100200 is 2001201021.

It can be written as a sum of positive squares in 6 ways, for example, as 46627492356 + 73474607844 = 215934^2 + 271062^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 214651 + ... + 535050.

Almost surely, 2^120102100200 is an apocalyptic number.

120102100200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120102100200 is an abundant number, since it is smaller than the sum of its proper divisors (287773272900).

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

120102100200 is a wasteful number, since it uses less digits than its factorization.

120102100200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749812 (or 749800 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 120102100200 its reverse (2001201021), we get a palindrome (122103301221).

The spelling of 120102100200 in words is "one hundred twenty billion, one hundred two million, one hundred thousand, two hundred".