11100220200 has 72 divisors (see below), whose sum is σ = 37278245550. Its totient is φ = 2960058240.

The previous prime is 11100220121. The next prime is 11100220211. The reversal of 11100220200 is 202200111.

It can be written as a sum of positive squares in 3 ways, for example, as 9622432836 + 1477787364 = 98094^2 + 38442^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3081595 + ... + 3085194.

Almost surely, 2^11100220200 is an apocalyptic number.

11100220200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11100220200 is an abundant number, since it is smaller than the sum of its proper divisors (26178025350).

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

11100220200 is a wasteful number, since it uses less digits than its factorization.

11100220200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6166811 (or 6166799 counting only the distinct ones).

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

Adding to 11100220200 its reverse (202200111), we get a palindrome (11302420311).

The spelling of 11100220200 in words is "eleven billion, one hundred million, two hundred twenty thousand, two hundred".