12112111199 has 2 divisors, whose sum is σ = 12112111200. Its totient is φ = 12112111198.

The previous prime is 12112111189. The next prime is 12112111223. The reversal of 12112111199 is 99111121121.

It is a weak prime.

It is an emirp because it is prime and its reverse (99111121121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12112111199 - 2⁸ = 12112110943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12112111169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056055599 + 6056055600.

It is an arithmetic number, because the mean of its divisors is an integer number (6056055600).

Almost surely, 2^12112111199 is an apocalyptic number.

12112111199 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112111199 is an equidigital number, since it uses as much as digits as its factorization.

12112111199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 29.

It can be divided in two parts, 12 and 112111199, that added together give a palindrome (112111211).

The spelling of 12112111199 in words is "twelve billion, one hundred twelve million, one hundred eleven thousand, one hundred ninety-nine".