111112222211112 has 16 divisors (see below), whose sum is σ = 277780555527840. Its totient is φ = 37037407403696.

The previous prime is 111112222211069. The next prime is 111112222211153. The reversal of 111112222211112 is 211112222211111.

It is a nude number because it is divisible by every one 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, 2314837962708 + ... + 2314837962755.

It is an arithmetic number, because the mean of its divisors is an integer number (17361284720490).

Almost surely, 2^{111112222211112} is an apocalyptic number.

111112222211112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111112222211112 is an abundant number, since it is smaller than the sum of its proper divisors (166668333316728).

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

111112222211112 is a wasteful number, since it uses less digits than its factorization.

111112222211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4629675925472 (or 4629675925468 counting only the distinct ones).

The product of its digits is 64, while the sum is 21.

Adding to 111112222211112 its reverse (211112222211111), we get a palindrome (322224444422223).

Subtracting 111112222211112 from its reverse (211112222211111), we obtain a palindrome (99999999999999).

The spelling of 111112222211112 in words is "one hundred eleven trillion, one hundred twelve billion, two hundred twenty-two million, two hundred eleven thousand, one hundred twelve".