12112322111 has 2 divisors, whose sum is σ = 12112322112. Its totient is φ = 12112322110.

The previous prime is 12112322071. The next prime is 12112322113. The reversal of 12112322111 is 11122321121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12112322111 - 2¹⁰ = 12112321087 is a prime.

Together with 12112322113, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12112322111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12112322113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056161055 + 6056161056.

It is an arithmetic number, because the mean of its divisors is an integer number (6056161056).

Almost surely, 2^12112322111 is an apocalyptic number.

12112322111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112322111 is an equidigital number, since it uses as much as digits as its factorization.

12112322111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48, while the sum is 17.

Adding to 12112322111 its reverse (11122321121), we get a palindrome (23234643232).

The spelling of 12112322111 in words is "twelve billion, one hundred twelve million, three hundred twenty-two thousand, one hundred eleven".