11229218 has 64 divisors (see below), whose sum is σ = 23224320. Its totient is φ = 3931200.

The previous prime is 11229217. The next prime is 11229227. The reversal of 11229218 is 81292211.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (11229217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142103 + ... + 142181.

It is an arithmetic number, because the mean of its divisors is an integer number (362880).

Almost surely, 2^11229218 is an apocalyptic number.

11229218 is an abundant number, since it is smaller than the sum of its proper divisors (11995102).

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

11229218 is a wasteful number, since it uses less digits than its factorization.

11229218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183.

The product of its digits is 576, while the sum is 26.

The square root of 11229218 is about 3351.0025365553. The cubic root of 11229218 is about 223.9321781279.

The spelling of 11229218 in words is "eleven million, two hundred twenty-nine thousand, two hundred eighteen".