122200131111 has 4 divisors (see below), whose sum is σ = 162933508152. Its totient is φ = 81466754072.

The previous prime is 122200131107. The next prime is 122200131149. The reversal of 122200131111 is 111131002221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122200131111 - 2² = 122200131107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122200131191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20366688516 + ... + 20366688521.

It is an arithmetic number, because the mean of its divisors is an integer number (40733377038).

Almost surely, 2^122200131111 is an apocalyptic number.

122200131111 is a deficient number, since it is larger than the sum of its proper divisors (40733377041).

122200131111 is an equidigital number, since it uses as much as digits as its factorization.

122200131111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40733377040.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 122200131111 its reverse (111131002221), we get a palindrome (233331133332).

The spelling of 122200131111 in words is "one hundred twenty-two billion, two hundred million, one hundred thirty-one thousand, one hundred eleven".