120120201999 has 96 divisors (see below), whose sum is σ = 208645632000. Its totient is φ = 65146701312.

The previous prime is 120120201989. The next prime is 120120202003. The reversal of 120120201999 is 999102021021.

It is not a de Polignac number, because 120120201999 - 2⁴ = 120120201983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120120201989) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 29103874 + ... + 29108000.

It is an arithmetic number, because the mean of its divisors is an integer number (2173392000).

Almost surely, 2^120120201999 is an apocalyptic number.

120120201999 is a deficient number, since it is larger than the sum of its proper divisors (88525430001).

120120201999 is a wasteful number, since it uses less digits than its factorization.

120120201999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4437 (or 4434 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The spelling of 120120201999 in words is "one hundred twenty billion, one hundred twenty million, two hundred one thousand, nine hundred ninety-nine".