11202218 has 12 divisors (see below), whose sum is σ = 17850822. Its totient is φ = 5271360.

The previous prime is 11202209. The next prime is 11202221. The reversal of 11202218 is 81220211.

It is a happy number.

11202218 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 3 ways, for example, as 11175649 + 26569 = 3343^2 + 163^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a zygodrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 11202196 and 11202205.

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, 9113 + ... + 10268.

Almost surely, 2^11202218 is an apocalyptic number.

11202218 is a deficient number, since it is larger than the sum of its proper divisors (6648604).

11202218 is a wasteful number, since it uses less digits than its factorization.

11202218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19417 (or 19400 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 11202218 is about 3346.9714668637. The cubic root of 11202218 is about 223.7525567990.

Adding to 11202218 its reverse (81220211), we get a palindrome (92422429).

The spelling of 11202218 in words is "eleven million, two hundred two thousand, two hundred eighteen".