111101122212 has 48 divisors (see below), whose sum is σ = 264134734080. Its totient is φ = 36336286368.

The previous prime is 111101122199. The next prime is 111101122241. The reversal of 111101122212 is 212221101111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111101122191 and 111101122200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220263 + ... + 520305.

It is an arithmetic number, because the mean of its divisors is an integer number (5502806960).

Almost surely, 2^111101122212 is an apocalyptic number.

111101122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111101122212 is an abundant number, since it is smaller than the sum of its proper divisors (153033611868).

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

111101122212 is a wasteful number, since it uses less digits than its factorization.

111101122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300632 (or 300630 counting only the distinct ones).

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

Adding to 111101122212 its reverse (212221101111), we get a palindrome (323322223323).

The spelling of 111101122212 in words is "one hundred eleven billion, one hundred one million, one hundred twenty-two thousand, two hundred twelve".