122111012112 has 40 divisors (see below), whose sum is σ = 315503782656. Its totient is φ = 40697175936.

The previous prime is 122111012069. The next prime is 122111012113. The reversal of 122111012112 is 211210111221.

It is a happy number.

It is a super-2 number, since 2×122111012112² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122111012091 and 122111012100.

It is not an unprimeable number, because it can be changed into a prime (122111012113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105838 + ... + 505394.

Almost surely, 2^122111012112 is an apocalyptic number.

122111012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122111012112 is an abundant number, since it is smaller than the sum of its proper divisors (193392770544).

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

122111012112 is a wasteful number, since it uses less digits than its factorization.

122111012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405935 (or 405929 counting only the distinct ones).

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

Adding to 122111012112 its reverse (211210111221), we get a palindrome (333321123333).

The spelling of 122111012112 in words is "one hundred twenty-two billion, one hundred eleven million, twelve thousand, one hundred twelve".