11222208 has 42 divisors (see below), whose sum is σ = 32168084. Its totient is φ = 3740544.

The previous prime is 11222201. The next prime is 11222209. The reversal of 11222208 is 80222211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11222201) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 9166 + ... + 10317.

Almost surely, 2^11222208 is an apocalyptic number.

11222208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11222208 is an abundant number, since it is smaller than the sum of its proper divisors (20945876).

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

11222208 is a wasteful number, since it uses less digits than its factorization.

11222208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19501 (or 19488 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 11222208 is about 3349.9564176270. The cubic root of 11222208 is about 223.8855708061.

Adding to 11222208 its reverse (80222211), we get a palindrome (91444419).

The spelling of 11222208 in words is "eleven million, two hundred twenty-two thousand, two hundred eight".