111122110222112 has 96 divisors (see below), whose sum is σ = 240223916419200. Its totient is φ = 50179508305920.

The previous prime is 111122110222073. The next prime is 111122110222153. The reversal of 111122110222112 is 211222011221111.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 78647264 + ... + 80047712.

It is an arithmetic number, because the mean of its divisors is an integer number (2502332462700).

Almost surely, 2^{111122110222112} 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 111122110222112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120111958209600).

111122110222112 is an abundant number, since it is smaller than the sum of its proper divisors (129101806197088).

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

111122110222112 is a wasteful number, since it uses less digits than its factorization.

111122110222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401946 (or 1401938 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 111122110222112 its reverse (211222011221111), we get a palindrome (322344121443223).

The spelling of 111122110222112 in words is "one hundred eleven trillion, one hundred twenty-two billion, one hundred ten million, two hundred twenty-two thousand, one hundred twelve".