1112111112 has 64 divisors (see below), whose sum is σ = 3279974400. Its totient is φ = 307494720.

The previous prime is 1112111087. The next prime is 1112111123. The reversal of 1112111112 is 2111112111.

It is a super-2 number, since 2×1112111112² = 2473582250867753088, which contains 22 as substring.

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

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 15 ways as a sum of consecutive naturals, for example, 101562 + ... + 111977.

It is an arithmetic number, because the mean of its divisors is an integer number (51249600).

Almost surely, 2^1112111112 is an apocalyptic number.

1112111112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1112111112 is an abundant number, since it is smaller than the sum of its proper divisors (2167863288).

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

1112111112 is a wasteful number, since it uses less digits than its factorization.

1112111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213586 (or 213582 counting only the distinct ones).

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

The square root of 1112111112 is about 33348.3299731786. The cubic root of 1112111112 is about 1036.0547990075.

Adding to 1112111112 its reverse (2111112111), we get a palindrome (3223223223).

Subtracting 1112111112 from its reverse (2111112111), we obtain a palindrome (999000999).

It can be divided in two parts, 111 and 2111112, that multiplied together give a palindrome (234333432).

The spelling of 1112111112 in words is "one billion, one hundred twelve million, one hundred eleven thousand, one hundred twelve".