12009105195 has 16 divisors (see below), whose sum is σ = 19222479360. Its totient is φ = 6402219104.

The previous prime is 12009105187. The next prime is 12009105203. The reversal of 12009105195 is 59150190021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12009105187) and next prime (12009105203).

It is a cyclic number.

It is not a de Polignac number, because 12009105195 - 2³ = 12009105187 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126885 + ... + 200294.

It is an arithmetic number, because the mean of its divisors is an integer number (1201404960).

Almost surely, 2^12009105195 is an apocalyptic number.

12009105195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12009105195 is a deficient number, since it is larger than the sum of its proper divisors (7213374165).

12009105195 is a wasteful number, since it uses less digits than its factorization.

12009105195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329634.

The product of its (nonzero) digits is 4050, while the sum is 33.

The spelling of 12009105195 in words is "twelve billion, nine million, one hundred five thousand, one hundred ninety-five".