12168086121 has 12 divisors (see below), whose sum is σ = 17984872048. Its totient is φ = 7923404664.

The previous prime is 12168086071. The next prime is 12168086123.

12168086121 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12168086121 - 2⁶ = 12168086057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12168086123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15720655 + ... + 15721428.

Almost surely, 2^12168086121 is an apocalyptic number.

It is an amenable number.

12168086121 is a deficient number, since it is larger than the sum of its proper divisors (5816785927).

12168086121 is a wasteful number, since it uses less digits than its factorization.

12168086121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31442132 (or 31442129 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The spelling of 12168086121 in words is "twelve billion, one hundred sixty-eight million, eighty-six thousand, one hundred twenty-one".