11218224 has 20 divisors (see below), whose sum is σ = 28980536. Its totient is φ = 3739392.

The previous prime is 11218219. The next prime is 11218231. The reversal of 11218224 is 42281211.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 11218224.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116809 + ... + 116904.

Almost surely, 2^11218224 is an apocalyptic number.

It is an amenable number.

11218224 is an abundant number, since it is smaller than the sum of its proper divisors (17762312).

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

11218224 is a wasteful number, since it uses less digits than its factorization.

11218224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233724 (or 233718 counting only the distinct ones).

The product of its digits is 256, while the sum is 21.

The square root of 11218224 is about 3349.3617302406. The cubic root of 11218224 is about 223.8590737719.

Adding to 11218224 its reverse (42281211), we get a palindrome (53499435).

It can be divided in two parts, 112 and 18224, that added together give a triangular number (18336 = T₁₉₁).

The spelling of 11218224 in words is "eleven million, two hundred eighteen thousand, two hundred twenty-four".