11220204 has 24 divisors (see below), whose sum is σ = 27721008. Its totient is φ = 3520000.

The previous prime is 11220199. The next prime is 11220211. The reversal of 11220204 is 40202211.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 11220204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27297 + ... + 27704.

It is an arithmetic number, because the mean of its divisors is an integer number (1155042).

Almost surely, 2^11220204 is an apocalyptic number.

It is an amenable number.

11220204 is an abundant number, since it is smaller than the sum of its proper divisors (16500804).

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

11220204 is a wasteful number, since it uses less digits than its factorization.

11220204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55025 (or 55023 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 11220204 is about 3349.6572959036. The cubic root of 11220204 is about 223.8722432627.

Adding to 11220204 its reverse (40202211), we get a palindrome (51422415).

The spelling of 11220204 in words is "eleven million, two hundred twenty thousand, two hundred four".