111222222011112 has 256 divisors, whose sum is σ = 293484576844800. Its totient is φ = 35089344460800.

The previous prime is 111222222011107. The next prime is 111222222011113. The reversal of 111222222011112 is 211110222222111.

It is not an unprimeable number, because it can be changed into a prime (111222222011113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8449603843 + ... + 8449617005.

It is an arithmetic number, because the mean of its divisors is an integer number (1146424128300).

Almost surely, 2^{111222222011112} is an apocalyptic number.

111222222011112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111222222011112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146742288422400).

111222222011112 is an abundant number, since it is smaller than the sum of its proper divisors (182262354833688).

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

111222222011112 is a wasteful number, since it uses less digits than its factorization.

111222222011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15248 (or 15244 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 111222222011112 its reverse (211110222222111), we get a palindrome (322332444233223).

The spelling of 111222222011112 in words is "one hundred eleven trillion, two hundred twenty-two billion, two hundred twenty-two million, eleven thousand, one hundred twelve".