111100211112 has 64 divisors (see below), whose sum is σ = 320824152000. Its totient is φ = 31686333440.

The previous prime is 111100211099. The next prime is 111100211171. The reversal of 111100211112 is 211112001111.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 12372987 + ... + 12381962.

It is an arithmetic number, because the mean of its divisors is an integer number (5012877375).

Almost surely, 2^111100211112 is an apocalyptic number.

111100211112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111100211112 is an abundant number, since it is smaller than the sum of its proper divisors (209723940888).

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

111100211112 is a wasteful number, since it uses less digits than its factorization.

111100211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24754986 (or 24754982 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111100211112 its reverse (211112001111), we get a palindrome (322212212223).

The spelling of 111100211112 in words is "one hundred eleven billion, one hundred million, two hundred eleven thousand, one hundred twelve".