122102111112 has 16 divisors (see below), whose sum is σ = 305255277840. Its totient is φ = 40700703696.

The previous prime is 122102111039. The next prime is 122102111161. The reversal of 122102111112 is 211111201221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122102111091 and 122102111100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2543793958 + ... + 2543794005.

It is an arithmetic number, because the mean of its divisors is an integer number (19078454865).

Almost surely, 2^122102111112 is an apocalyptic number.

122102111112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122102111112 is an abundant number, since it is smaller than the sum of its proper divisors (183153166728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122102111112 is a wasteful number, since it uses less digits than its factorization.

122102111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5087587972 (or 5087587968 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 122102111112 its reverse (211111201221), we get a palindrome (333213312333).

The spelling of 122102111112 in words is "one hundred twenty-two billion, one hundred two million, one hundred eleven thousand, one hundred twelve".