11220200100 has 54 divisors (see below), whose sum is σ = 35169096690. Its totient is φ = 2992053120.

The previous prime is 11220200063. The next prime is 11220200143. The reversal of 11220200100 is 100202211.

It can be written as a sum of positive squares in 3 ways, for example, as 499254336 + 10720945764 = 22344^2 + 103542^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6232545 + ... + 6234344.

Almost surely, 2^11220200100 is an apocalyptic number.

11220200100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220200100 is an abundant number, since it is smaller than the sum of its proper divisors (23948896590).

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

11220200100 is a wasteful number, since it uses less digits than its factorization.

11220200100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12466909 (or 12466899 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 11220200100 its reverse (100202211), we get a palindrome (11320402311).

The spelling of 11220200100 in words is "eleven billion, two hundred twenty million, two hundred thousand, one hundred".