12290195185 has 4 divisors (see below), whose sum is σ = 14748234228. Its totient is φ = 9832156144.

The previous prime is 12290195173. The next prime is 12290195221. The reversal of 12290195185 is 58159109221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9205059249 + 3085135936 = 95943^2 + 55544^2 .

It is a cyclic number.

It is not a de Polignac number, because 12290195185 - 2²¹ = 12288098033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1229019514 + ... + 1229019523.

It is an arithmetic number, because the mean of its divisors is an integer number (3687058557).

Almost surely, 2^12290195185 is an apocalyptic number.

It is an amenable number.

12290195185 is a deficient number, since it is larger than the sum of its proper divisors (2458039043).

12290195185 is an equidigital number, since it uses as much as digits as its factorization.

12290195185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458039042.

The product of its (nonzero) digits is 64800, while the sum is 43.

The spelling of 12290195185 in words is "twelve billion, two hundred ninety million, one hundred ninety-five thousand, one hundred eighty-five".