111112221133312 has 80 divisors (see below), whose sum is σ = 253829353738752. Its totient is φ = 47599519887360.

The previous prime is 111112221133261. The next prime is 111112221133351. The reversal of 111112221133312 is 213331122211111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2023153 + ... + 15043855.

Almost surely, 2^{111112221133312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111112221133312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126914676869376).

111112221133312 is an abundant number, since it is smaller than the sum of its proper divisors (142717132605440).

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

111112221133312 is an equidigital number, since it uses as much as digits as its factorization.

111112221133312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13023109 (or 13023093 counting only the distinct ones).

The product of its digits is 432, while the sum is 25.

Adding to 111112221133312 its reverse (213331122211111), we get a palindrome (324443343344423).

The spelling of 111112221133312 in words is "one hundred eleven trillion, one hundred twelve billion, two hundred twenty-one million, one hundred thirty-three thousand, three hundred twelve".