122123231111 has 24 divisors (see below), whose sum is σ = 143272626336. Its totient is φ = 103787980800.

The previous prime is 122123231099. The next prime is 122123231117. The reversal of 122123231111 is 111132321221.

It is not a de Polignac number, because 122123231111 - 2¹⁴ = 122123214727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122123231117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3262775 + ... + 3299991.

It is an arithmetic number, because the mean of its divisors is an integer number (5969692764).

Almost surely, 2^122123231111 is an apocalyptic number.

122123231111 is a deficient number, since it is larger than the sum of its proper divisors (21149395225).

122123231111 is a wasteful number, since it uses less digits than its factorization.

122123231111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37799 (or 37792 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

Adding to 122123231111 its reverse (111132321221), we get a palindrome (233255552332).

The spelling of 122123231111 in words is "one hundred twenty-two billion, one hundred twenty-three million, two hundred thirty-one thousand, one hundred eleven".