11300221 has 4 divisors (see below), whose sum is σ = 11307132. Its totient is φ = 11293312.

The previous prime is 11300167. The next prime is 11300251. The reversal of 11300221 is 12200311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12200311 = 2239 ⋅5449.

It can be written as a sum of positive squares in 2 ways, for example, as 3956121 + 7344100 = 1989^2 + 2710^2 .

It is a cyclic number.

It is not a de Polignac number, because 11300221 - 2¹⁵ = 11267453 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11300198 and 11300207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11300251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531 + ... + 4783.

It is an arithmetic number, because the mean of its divisors is an integer number (2826783).

Almost surely, 2^11300221 is an apocalyptic number.

It is an amenable number.

11300221 is a deficient number, since it is larger than the sum of its proper divisors (6911).

11300221 is an equidigital number, since it uses as much as digits as its factorization.

11300221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6910.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 11300221 is about 3361.5801344011. The cubic root of 11300221 is about 224.4031655634.

Adding to 11300221 its reverse (12200311), we get a palindrome (23500532).

The spelling of 11300221 in words is "eleven million, three hundred thousand, two hundred twenty-one".