12190912171 has 8 divisors (see below), whose sum is σ = 12375729360. Its totient is φ = 12006179328.

The previous prime is 12190912163. The next prime is 12190912189. The reversal of 12190912171 is 17121909121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12190912171 - 2³ = 12190912163 is a prime.

It is a super-2 number, since 2×12190912171² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12190912771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308955 + ... + 346171.

It is an arithmetic number, because the mean of its divisors is an integer number (1546966170).

Almost surely, 2^12190912171 is an apocalyptic number.

12190912171 is a deficient number, since it is larger than the sum of its proper divisors (184817189).

12190912171 is an equidigital number, since it uses as much as digits as its factorization.

12190912171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42173.

The product of its (nonzero) digits is 2268, while the sum is 34.

The spelling of 12190912171 in words is "twelve billion, one hundred ninety million, nine hundred twelve thousand, one hundred seventy-one".