11221424 has 20 divisors (see below), whose sum is σ = 22687536. Its totient is φ = 5366592.

The previous prime is 11221423. The next prime is 11221439. The reversal of 11221424 is 42412211.

11221424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14879 + ... + 15614.

Almost surely, 2^11221424 is an apocalyptic number.

It is an amenable number.

11221424 is an abundant number, since it is smaller than the sum of its proper divisors (11466112).

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

11221424 is a wasteful number, since it uses less digits than its factorization.

11221424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30524 (or 30518 counting only the distinct ones).

The product of its digits is 128, while the sum is 17.

The square root of 11221424 is about 3349.8393991354. The cubic root of 11221424 is about 223.8803570260.

Adding to 11221424 its reverse (42412211), we get a palindrome (53633635).

The spelling of 11221424 in words is "eleven million, two hundred twenty-one thousand, four hundred twenty-four".