11218 has 8 divisors (see below), whose sum is σ = 17280. Its totient is φ = 5460.

The previous prime is 11213. The next prime is 11239. The reversal of 11218 is 81211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11198 and 11207.

It is not an unprimeable number, because it can be changed into a prime (11213) 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, 103 + ... + 181.

It is an arithmetic number, because the mean of its divisors is an integer number (2160).

2¹¹²¹⁸ is an apocalyptic number.

11218 is a deficient number, since it is larger than the sum of its proper divisors (6062).

11218 is an equidigital number, since it uses as much as digits as its factorization.

11218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152.

The product of its digits is 16, while the sum is 13.

The square root of 11218 is about 105.9150603078. The cubic root of 11218 is about 22.3857583793.

Adding to 11218 its reverse (81211), we get a palindrome (92429).

It can be divided in two parts, 112 and 18, that multiplied together give a triangular number (2016 = T₆₃).

The spelling of 11218 in words is "eleven thousand, two hundred eighteen".