120021011200 has 54 divisors (see below), whose sum is σ = 297070771844. Its totient is φ = 48008401920.

The previous prime is 120021011197. The next prime is 120021011249. The reversal of 120021011200 is 2110120021.

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

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, 9370242 + ... + 9383041.

Almost surely, 2^120021011200 is an apocalyptic number.

120021011200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120021011200 is an abundant number, since it is smaller than the sum of its proper divisors (177049760644).

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

120021011200 is an equidigital number, since it uses as much as digits as its factorization.

120021011200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18753309 (or 18753290 counting only the distinct ones).

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

Adding to 120021011200 its reverse (2110120021), we get a palindrome (122131131221).

The spelling of 120021011200 in words is "one hundred twenty billion, twenty-one million, eleven thousand, two hundred".