111222101121112 has 64 divisors (see below), whose sum is σ = 232465985791200. Its totient is φ = 49577427025920.

The previous prime is 111222101121107. The next prime is 111222101121121. The reversal of 111222101121112 is 211121101222111.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 111222101121112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13426228 + ... + 20067580.

Almost surely, 2^{111222101121112} is an apocalyptic number.

It is an amenable number.

111222101121112 is an abundant number, since it is smaller than the sum of its proper divisors (121243884670088).

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

111222101121112 is a wasteful number, since it uses less digits than its factorization.

111222101121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6647876 (or 6647872 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 111222101121112 its reverse (211121101222111), we get a palindrome (322343202343223).

The spelling of 111222101121112 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred one million, one hundred twenty-one thousand, one hundred twelve".