1111111112112 has 20 divisors (see below), whose sum is σ = 2870370373080. Its totient is φ = 370370370688.

The previous prime is 1111111112099. The next prime is 1111111112141. The reversal of 1111111112112 is 2112111111111.

It is a happy number.

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 = 1111111112091 and 1111111112100.

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, 11574074037 + ... + 11574074132.

It is an arithmetic number, because the mean of its divisors is an integer number (143518518654).

Almost surely, 2^{1111111112112} is an apocalyptic number.

1111111112112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1111111112112 is an abundant number, since it is smaller than the sum of its proper divisors (1759259260968).

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

1111111112112 is a wasteful number, since it uses less digits than its factorization.

1111111112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23148148180 (or 23148148174 counting only the distinct ones).

The product of its digits is 4, while the sum is 15.

Adding to 1111111112112 its reverse (2112111111111), we get a palindrome (3223222223223).

It can be divided in two parts, 111111111 and 2112, that multiplied together give a palindrome (234666666432).

The spelling of 1111111112112 in words is "one trillion, one hundred eleven billion, one hundred eleven million, one hundred twelve thousand, one hundred twelve".