111112111112 has 128 divisors (see below), whose sum is σ = 239976950400. Its totient is φ = 47900160000.

The previous prime is 111112111079. The next prime is 111112111141. The reversal of 111112111112 is 211111211111.

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11217362 + ... + 11227262.

It is an arithmetic number, because the mean of its divisors is an integer number (1874819925).

Almost surely, 2^111112111112 is an apocalyptic number.

It is an amenable number.

111112111112 is an abundant number, since it is smaller than the sum of its proper divisors (128864839288).

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

111112111112 is a wasteful number, since it uses less digits than its factorization.

111112111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10087 (or 10083 counting only the distinct ones).

The product of its digits is 4, while the sum is 14.

Adding to 111112111112 its reverse (211111211111), we get a palindrome (322223322223).

Subtracting 111112111112 from its reverse (211111211111), we obtain a palindrome (99999099999).

It can be divided in two parts, 11111211111 and 2, that multiplied together give a palindrome (22222422222).

The spelling of 111112111112 in words is "one hundred eleven billion, one hundred twelve million, one hundred eleven thousand, one hundred twelve".