1100022200 has 96 divisors (see below), whose sum is σ = 2676726000. Its totient is φ = 419865600.

The previous prime is 1100022199. The next prime is 1100022299. The reversal of 1100022200 is 22200011.

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

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 515135 + ... + 517265.

Almost surely, 2^1100022200 is an apocalyptic number.

1100022200 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 1100022200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1338363000).

1100022200 is an abundant number, since it is smaller than the sum of its proper divisors (1576703800).

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

1100022200 is a wasteful number, since it uses less digits than its factorization.

1100022200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265 (or 2256 counting only the distinct ones).

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

The square root of 1100022200 is about 33166.5825794579. The cubic root of 1100022200 is about 1032.2870598395.

Adding to 1100022200 its reverse (22200011), we get a palindrome (1122222211).

The spelling of 1100022200 in words is "one billion, one hundred million, twenty-two thousand, two hundred".