12199027209 has 32 divisors (see below), whose sum is σ = 16856671104. Its totient is φ = 7842078720.

The previous prime is 12199027187. The next prime is 12199027213. The reversal of 12199027209 is 90272099121.

It is not a de Polignac number, because 12199027209 - 2⁷ = 12199027081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12199427209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6017254 + ... + 6019280.

It is an arithmetic number, because the mean of its divisors is an integer number (526770972).

Almost surely, 2^12199027209 is an apocalyptic number.

It is an amenable number.

12199027209 is a deficient number, since it is larger than the sum of its proper divisors (4657643895).

12199027209 is a wasteful number, since it uses less digits than its factorization.

12199027209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617.

The product of its (nonzero) digits is 40824, while the sum is 42.

The spelling of 12199027209 in words is "twelve billion, one hundred ninety-nine million, twenty-seven thousand, two hundred nine".