122100222111 has 16 divisors (see below), whose sum is σ = 191086063104. Its totient is φ = 67885837344.

The previous prime is 122100222073. The next prime is 122100222113. The reversal of 122100222111 is 111222001221.

It is not a de Polignac number, because 122100222111 - 2⁹ = 122100221599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100222113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78570795 + ... + 78572348.

It is an arithmetic number, because the mean of its divisors is an integer number (11942878944).

Almost surely, 2^122100222111 is an apocalyptic number.

122100222111 is a deficient number, since it is larger than the sum of its proper divisors (68985840993).

122100222111 is a wasteful number, since it uses less digits than its factorization.

122100222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157143190.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122100222111 its reverse (111222001221), we get a palindrome (233322223332).

The spelling of 122100222111 in words is "one hundred twenty-two billion, one hundred million, two hundred twenty-two thousand, one hundred eleven".