2221224 has 16 divisors (see below), whose sum is σ = 5553120. Its totient is φ = 740400.

The previous prime is 2221217. The next prime is 2221229. The reversal of 2221224 is 4221222.

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

It is not an unprimeable number, because it can be changed into a prime (2221229) 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, 46252 + ... + 46299.

It is an arithmetic number, because the mean of its divisors is an integer number (347070).

2^2221224 is an apocalyptic number.

2221224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2221224 is an abundant number, since it is smaller than the sum of its proper divisors (3331896).

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

2221224 is a wasteful number, since it uses less digits than its factorization.

2221224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92560 (or 92556 counting only the distinct ones).

The product of its digits is 128, while the sum is 15.

The square root of 2221224 is about 1490.3771334800. The cubic root of 2221224 is about 130.4760455731.

Adding to 2221224 its reverse (4221222), we get a palindrome (6442446).

The spelling of 2221224 in words is "two million, two hundred twenty-one thousand, two hundred twenty-four".