120200012100 has 144 divisors (see below), whose sum is σ = 441623817600. Its totient is φ = 27474284160.

The previous prime is 120200012089. The next prime is 120200012129. The reversal of 120200012100 is 1210002021.

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 47 ways as a sum of consecutive naturals, for example, 3160995 + ... + 3198794.

Almost surely, 2^120200012100 is an apocalyptic number.

120200012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120200012100 is an abundant number, since it is smaller than the sum of its proper divisors (321423805500).

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

120200012100 is a wasteful number, since it uses less digits than its factorization.

120200012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6359819 (or 6359806 counting only the distinct ones).

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

Adding to 120200012100 its reverse (1210002021), we get a palindrome (121410014121).

The spelling of 120200012100 in words is "one hundred twenty billion, two hundred million, twelve thousand, one hundred".