12090004209 has 24 divisors (see below), whose sum is σ = 18445277760. Its totient is φ = 7609699872.

The previous prime is 12090004207. The next prime is 12090004219. The reversal of 12090004209 is 90240009021.

It is not a de Polignac number, because 12090004209 - 2¹ = 12090004207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12090004207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70549 + ... + 170754.

It is an arithmetic number, because the mean of its divisors is an integer number (768553240).

Almost surely, 2^12090004209 is an apocalyptic number.

12090004209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12090004209 is a deficient number, since it is larger than the sum of its proper divisors (6355273551).

12090004209 is a wasteful number, since it uses less digits than its factorization.

12090004209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241621 (or 241618 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 12090004209 in words is "twelve billion, ninety million, four thousand, two hundred nine".