11111102200 has 96 divisors (see below), whose sum is σ = 29407224960. Its totient is φ = 3864713600.

The previous prime is 11111102141. The next prime is 11111102201. The reversal of 11111102200 is 220111111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111102201) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 59194 + ... + 160393.

It is an arithmetic number, because the mean of its divisors is an integer number (306325260).

Almost surely, 2^11111102200 is an apocalyptic number.

11111102200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111102200 is an abundant number, since it is smaller than the sum of its proper divisors (18296122760).

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

11111102200 is a wasteful number, since it uses less digits than its factorization.

11111102200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219637 (or 219628 counting only the distinct ones).

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

Adding to 11111102200 its reverse (220111111), we get a palindrome (11331213311).

It can be divided in two parts, 11111 and 102200, that added together give a palindrome (113311).

The spelling of 11111102200 in words is "eleven billion, one hundred eleven million, one hundred two thousand, two hundred".