111222222222112 has 48 divisors (see below), whose sum is σ = 219483211453632. Its totient is φ = 55480477328640.

The previous prime is 111222222222103. The next prime is 111222222222131. The reversal of 111222222222112 is 211222222222111.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 156247162 + ... + 156957382.

It is an arithmetic number, because the mean of its divisors is an integer number (4572566905284).

Almost surely, 2^{111222222222112} is an apocalyptic number.

It is an amenable number.

111222222222112 is a deficient number, since it is larger than the sum of its proper divisors (108260989231520).

111222222222112 is a wasteful number, since it uses less digits than its factorization.

111222222222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721721 (or 721713 counting only the distinct ones).

The product of its digits is 1024, while the sum is 25.

Adding to 111222222222112 its reverse (211222222222111), we get a palindrome (322444444444223).

Subtracting 111222222222112 from its reverse (211222222222111), we obtain a palindrome (99999999999999).

The spelling of 111222222222112 in words is "one hundred eleven trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred twelve".