12120099 has 16 divisors (see below), whose sum is σ = 17371008. Its totient is φ = 7489152.

The previous prime is 12120091. The next prime is 12120179. The reversal of 12120099 is 99002121.

It is not a de Polignac number, because 12120099 - 2³ = 12120091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12120091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1644 + ... + 5190.

It is an arithmetic number, because the mean of its divisors is an integer number (1085688).

Almost surely, 2^12120099 is an apocalyptic number.

12120099 is a deficient number, since it is larger than the sum of its proper divisors (5250909).

12120099 is a wasteful number, since it uses less digits than its factorization.

12120099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3634.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 12120099 is about 3481.3932555803. The cubic root of 12120099 is about 229.7040869969.

The spelling of 12120099 in words is "twelve million, one hundred twenty thousand, ninety-nine".