11227 has 4 divisors (see below), whose sum is σ = 11440.
Its totient is φ = 11016.
The previous prime is 11213. The next prime is 11239. The reversal of 11227 is 72211.
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.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-11227 is a prime.
It is a Duffinian number.
11227 is a lucky number.
It is a plaindrome in base 10.
It is not an unprimeable number, because it can be changed into a prime (11257) 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, 49 + ... + 157.
It is an arithmetic number, because the mean of its divisors is an integer number (2860).
211227 is an apocalyptic number.
11227 is a deficient number, since it is larger than the sum of its proper divisors (213).
11227 is a wasteful number, since it uses less digits than its factorization.
11227 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 212.
The product of its digits is 28, while the sum is 13.
The square root of 11227 is about 105.9575386653.
The cubic root of 11227 is about 22.3917433430.
Adding to 11227 its reverse (72211), we get a palindrome (83438).
The spelling of 11227 in words is "eleven thousand, two hundred twenty-seven", and thus it is an iban number.