12164345112211 has 4 divisors (see below), whose sum is σ = 12879894824712. Its totient is φ = 11448795399712.

The previous prime is 12164345112169. The next prime is 12164345112229. The reversal of 12164345112211 is 11221154346121.

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

It is a cyclic number.

It is not a de Polignac number, because 12164345112211 - 2²⁵ = 12164311557779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12164345112011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357774856225 + ... + 357774856258.

It is an arithmetic number, because the mean of its divisors is an integer number (3219973706178).

Almost surely, 2^{12164345112211} is an apocalyptic number.

12164345112211 is a deficient number, since it is larger than the sum of its proper divisors (715549712501).

12164345112211 is an equidigital number, since it uses as much as digits as its factorization.

12164345112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715549712500.

The product of its digits is 11520, while the sum is 34.

Adding to 12164345112211 its reverse (11221154346121), we get a palindrome (23385499458332).

The spelling of 12164345112211 in words is "twelve trillion, one hundred sixty-four billion, three hundred forty-five million, one hundred twelve thousand, two hundred eleven".