122200021111 has 4 divisors (see below), whose sum is σ = 139657166992. Its totient is φ = 104742875232.

The previous prime is 122200021081. The next prime is 122200021127. The reversal of 122200021111 is 111120002221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111120002221 = 105607 ⋅1052203.

It is a cyclic number.

It is not a de Polignac number, because 122200021111 - 2⁹ = 122200020599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122200021091 and 122200021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122200061111) 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, 8728572930 + ... + 8728572943.

It is an arithmetic number, because the mean of its divisors is an integer number (34914291748).

Almost surely, 2^122200021111 is an apocalyptic number.

122200021111 is a deficient number, since it is larger than the sum of its proper divisors (17457145881).

122200021111 is an equidigital number, since it uses as much as digits as its factorization.

122200021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17457145880.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122200021111 its reverse (111120002221), we get a palindrome (233320023332).

The spelling of 122200021111 in words is "one hundred twenty-two billion, two hundred million, twenty-one thousand, one hundred eleven".