120020220999 has 12 divisors (see below), whose sum is σ = 198128618896. Its totient is φ = 68582983392.

The previous prime is 120020220941. The next prime is 120020221031. The reversal of 120020220999 is 999022020021.

It is not a de Polignac number, because 120020220999 - 2⁷ = 120020220871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020222999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 952541374 + ... + 952541499.

Almost surely, 2^120020220999 is an apocalyptic number.

120020220999 is a deficient number, since it is larger than the sum of its proper divisors (78108397897).

120020220999 is a wasteful number, since it uses less digits than its factorization.

120020220999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905082886 (or 1905082883 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The spelling of 120020220999 in words is "one hundred twenty billion, twenty million, two hundred twenty thousand, nine hundred ninety-nine".