120201100100 has 36 divisors (see below), whose sum is σ = 261112027344. Its totient is φ = 48029630880.

The previous prime is 120201100093. The next prime is 120201100139. The reversal of 120201100100 is 1001102021.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 539942 + ... + 729341.

Almost surely, 2^120201100100 is an apocalyptic number.

120201100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120201100100 is an abundant number, since it is smaller than the sum of its proper divisors (140910927244).

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

120201100100 is a wasteful number, since it uses less digits than its factorization.

120201100100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270244 (or 1270237 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 120201100100 its reverse (1001102021), we get a palindrome (121202202121).

The spelling of 120201100100 in words is "one hundred twenty billion, two hundred one million, one hundred thousand, one hundred".