111222100112 has 40 divisors (see below), whose sum is σ = 217782813240. Its totient is φ = 55020876800.

The previous prime is 111222100103. The next prime is 111222100141. The reversal of 111222100112 is 211001222111.

It can be written as a sum of positive squares in 4 ways, for example, as 63865376656 + 47356723456 = 252716^2 + 217616^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2291714 + ... + 2339742.

It is an arithmetic number, because the mean of its divisors is an integer number (5444570331).

Almost surely, 2^111222100112 is an apocalyptic number.

It is an amenable number.

111222100112 is a deficient number, since it is larger than the sum of its proper divisors (106560713128).

111222100112 is a wasteful number, since it uses less digits than its factorization.

111222100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49571 (or 49565 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111222100112 its reverse (211001222111), we get a palindrome (322223322223).

The spelling of 111222100112 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred thousand, one hundred twelve".