120000099999 has 64 divisors (see below), whose sum is σ = 177701142528. Its totient is φ = 71569008000.

The previous prime is 120000099899. The next prime is 120000100009. The reversal of 120000099999 is 999990000021.

It is not a de Polignac number, because 120000099999 - 2¹² = 120000095903 is a prime.

120000099999 is a modest number, since divided by 99999 gives 12 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120000099799) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 135900012 + ... + 135900894.

It is an arithmetic number, because the mean of its divisors is an integer number (2776580352).

Almost surely, 2^120000099999 is an apocalyptic number.

120000099999 is a deficient number, since it is larger than the sum of its proper divisors (57701042529).

120000099999 is a wasteful number, since it uses less digits than its factorization.

120000099999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588.

The product of its (nonzero) digits is 118098, while the sum is 48.

The spelling of 120000099999 in words is "one hundred twenty billion, ninety-nine thousand, nine hundred ninety-nine".