11221101200 has 30 divisors (see below), whose sum is σ = 26958696594. Its totient is φ = 4488440320.

The previous prime is 11221101197. The next prime is 11221101257. The reversal of 11221101200 is 210112211.

It can be written as a sum of positive squares in 3 ways, for example, as 4596736 + 11216504464 = 2144^2 + 105908^2 .

It is a super-2 number, since 2×11221101200² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14025977 + ... + 14026776.

Almost surely, 2^11221101200 is an apocalyptic number.

11221101200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221101200 is an abundant number, since it is smaller than the sum of its proper divisors (15737595394).

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

11221101200 is a wasteful number, since it uses less digits than its factorization.

11221101200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28052771 (or 28052760 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11221101200 its reverse (210112211), we get a palindrome (11431213411).

The spelling of 11221101200 in words is "eleven billion, two hundred twenty-one million, one hundred one thousand, two hundred".