11220056 has 16 divisors (see below), whose sum is σ = 21074040. Its totient is φ = 5600320.

The previous prime is 11220037. The next prime is 11220073. The reversal of 11220056 is 65002211.

It is a congruent number.

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, 6836 + ... + 8316.

Almost surely, 2^11220056 is an apocalyptic number.

It is an amenable number.

11220056 is a deficient number, since it is larger than the sum of its proper divisors (9853984).

11220056 is a wasteful number, since it uses less digits than its factorization.

11220056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434 (or 2430 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 11220056 is about 3349.6352040185. The cubic root of 11220056 is about 223.8712589301.

Adding to 11220056 its reverse (65002211), we get a palindrome (76222267).

The spelling of 11220056 in words is "eleven million, two hundred twenty thousand, fifty-six".