122312012111 has 2 divisors, whose sum is σ = 122312012112. Its totient is φ = 122312012110.

The previous prime is 122312012051. The next prime is 122312012129. The reversal of 122312012111 is 111210213221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122312012111 - 2⁶ = 122312012047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122312012111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122312012171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61156006055 + 61156006056.

It is an arithmetic number, because the mean of its divisors is an integer number (61156006056).

Almost surely, 2^122312012111 is an apocalyptic number.

122312012111 is a deficient number, since it is larger than the sum of its proper divisors (1).

122312012111 is an equidigital number, since it uses as much as digits as its factorization.

122312012111 is an odious number, because the sum of its binary digits is odd.

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

Adding to 122312012111 its reverse (111210213221), we get a palindrome (233522225332).

The spelling of 122312012111 in words is "one hundred twenty-two billion, three hundred twelve million, twelve thousand, one hundred eleven".