122200111111 has 8 divisors (see below), whose sum is σ = 131608955520. Its totient is φ = 112792528992.

The previous prime is 122200111097. The next prime is 122200111129. The reversal of 122200111111 is 111111002221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122200111111 - 2⁷ = 122200110983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122200111091 and 122200111100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122200111711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109516 + ... + 506353.

It is an arithmetic number, because the mean of its divisors is an integer number (16451119440).

Almost surely, 2^122200111111 is an apocalyptic number.

122200111111 is a deficient number, since it is larger than the sum of its proper divisors (9408844409).

122200111111 is a wasteful number, since it uses less digits than its factorization.

122200111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631145.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 122200111111 its reverse (111111002221), we get a palindrome (233311113332).

The spelling of 122200111111 in words is "one hundred twenty-two billion, two hundred million, one hundred eleven thousand, one hundred eleven".