1121111211112 has 16 divisors (see below), whose sum is σ = 2102132511360. Its totient is φ = 560542541424.

The previous prime is 1121111211061. The next prime is 1121111211127. The reversal of 1121111211112 is 2111121111211.

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 3 ways as a sum of consecutive naturals, for example, 1263378 + ... + 1959169.

It is an arithmetic number, because the mean of its divisors is an integer number (131383281960).

Almost surely, 2^{1121111211112} is an apocalyptic number.

It is an amenable number.

1121111211112 is a deficient number, since it is larger than the sum of its proper divisors (981021300248).

1121111211112 is a wasteful number, since it uses less digits than its factorization.

1121111211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3266040 (or 3266036 counting only the distinct ones).

The product of its digits is 8, while the sum is 16.

Adding to 1121111211112 its reverse (2111121111211), we get a palindrome (3232232322323).

Subtracting 1121111211112 from its reverse (2111121111211), we obtain a palindrome (990009900099).

It can be divided in two parts, 11 and 21111211112, that multiplied together give a palindrome (232223322232).

The spelling of 1121111211112 in words is "one trillion, one hundred twenty-one billion, one hundred eleven million, two hundred eleven thousand, one hundred twelve".