1001112200 has 96 divisors (see below), whose sum is σ = 2562291360. Its totient is φ = 360729600.

The previous prime is 1001112199. The next prime is 1001112209. The reversal of 1001112200 is 22111001.

1001112200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is not an unprimeable number, because it can be changed into a prime (1001112209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 246587 + ... + 250613.

It is an arithmetic number, because the mean of its divisors is an integer number (26690535).

Almost surely, 2^1001112200 is an apocalyptic number.

1001112200 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 1001112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1281145680).

1001112200 is an abundant number, since it is smaller than the sum of its proper divisors (1561179160).

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

1001112200 is a wasteful number, since it uses less digits than its factorization.

1001112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4167 (or 4158 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1001112200 is about 31640.3571408415. The cubic root of 1001112200 is about 1000.3705959750.

Adding to 1001112200 its reverse (22111001), we get a palindrome (1023223201).

The spelling of 1001112200 in words is "one billion, one million, one hundred twelve thousand, two hundred".