1111112200 has 48 divisors (see below), whose sum is σ = 2818190160. Its totient is φ = 404040000.

The previous prime is 1111112179. The next prime is 1111112201. The reversal of 1111112200 is 22111111.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1111112201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 250326 + ... + 254725.

It is an arithmetic number, because the mean of its divisors is an integer number (58712295).

Almost surely, 2^1111112200 is an apocalyptic number.

1111112200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111112200 is an abundant number, since it is smaller than the sum of its proper divisors (1707077960).

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

1111112200 is a wasteful number, since it uses less digits than its factorization.

1111112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505078 (or 505069 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1111112200 is about 33333.3496666627. The cubic root of 1111112200 is about 1035.7445069943.

Adding to 1111112200 its reverse (22111111), we get a palindrome (1133223311).

It can be divided in two parts, 111111 and 2200, that added together give a palindrome (113311).

The spelling of 1111112200 in words is "one billion, one hundred eleven million, one hundred twelve thousand, two hundred".