12009199 has 2 divisors, whose sum is σ = 12009200. Its totient is φ = 12009198.

The previous prime is 12009167. The next prime is 12009209. The reversal of 12009199 is 99190021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12009199 - 2⁵ = 12009167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12009199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12009119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6004599 + 6004600.

It is an arithmetic number, because the mean of its divisors is an integer number (6004600).

Almost surely, 2^12009199 is an apocalyptic number.

12009199 is a deficient number, since it is larger than the sum of its proper divisors (1).

12009199 is an equidigital number, since it uses as much as digits as its factorization.

12009199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 12009199 is about 3465.4291220569. The cubic root of 12009199 is about 229.0013348257.

The spelling of 12009199 in words is "twelve million, nine thousand, one hundred ninety-nine".