1116112200 has 144 divisors (see below), whose sum is σ = 4024943280. Its totient is φ = 255104640.

The previous prime is 1116112199. The next prime is 1116112201. The reversal of 1116112200 is 22116111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1116112199) and next prime (1116112201).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1116112200.

It is not an unprimeable number, because it can be changed into a prime (1116112201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10419 + ... + 48381.

It is an arithmetic number, because the mean of its divisors is an integer number (27950995).

Almost surely, 2^1116112200 is an apocalyptic number.

1116112200 is a gapful number since it is divisible by the number (10) 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 1116112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2012471640).

1116112200 is an abundant number, since it is smaller than the sum of its proper divisors (2908831080).

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

1116112200 is a wasteful number, since it uses less digits than its factorization.

1116112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37996 (or 37980 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 1116112200 is about 33408.2654443478. The cubic root of 1116112200 is about 1037.2957976203.

Adding to 1116112200 its reverse (22116111), we get a palindrome (1138228311).

The spelling of 1116112200 in words is "one billion, one hundred sixteen million, one hundred twelve thousand, two hundred".