122311102111 has 16 divisors (see below), whose sum is σ = 134806527648. Its totient is φ = 110045952000.

The previous prime is 122311102091. The next prime is 122311102201. The reversal of 122311102111 is 111201113221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 122311102111 - 2⁹ = 122311101599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122311102811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2859595 + ... + 2902051.

It is an arithmetic number, because the mean of its divisors is an integer number (8425407978).

Almost surely, 2^122311102111 is an apocalyptic number.

122311102111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122311102111 is a deficient number, since it is larger than the sum of its proper divisors (12495425537).

122311102111 is a wasteful number, since it uses less digits than its factorization.

122311102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45162.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 122311102111 its reverse (111201113221), we get a palindrome (233512215332).

It can be divided in two parts, 12231110 and 2111, that added together give a palindrome (12233221).

The spelling of 122311102111 in words is "one hundred twenty-two billion, three hundred eleven million, one hundred two thousand, one hundred eleven".