11111112112 has 20 divisors (see below), whose sum is σ = 21589830216. Its totient is φ = 5539543040.

The previous prime is 11111112091. The next prime is 11111112157. The reversal of 11111112112 is 21121111111.

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 a junction number, because it is equal to n+sod(n) for n = 11111112092 and 11111112101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995089 + ... + 1006192.

Almost surely, 2^11111112112 is an apocalyptic number.

It is an amenable number.

11111112112 is a deficient number, since it is larger than the sum of its proper divisors (10478718104).

11111112112 is a wasteful number, since it uses less digits than its factorization.

11111112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001636 (or 2001630 counting only the distinct ones).

The product of its digits is 4, while the sum is 13.

Adding to 11111112112 its reverse (21121111111), we get a palindrome (32232223223).

It can be divided in two parts, 1111111 and 2112, that multiplied together give a palindrome (2346666432).

The spelling of 11111112112 in words is "eleven billion, one hundred eleven million, one hundred twelve thousand, one hundred twelve".