5224221 has 24 divisors (see below), whose sum is σ = 8037120. Its totient is φ = 3260736.

The previous prime is 5224217. The next prime is 5224229. The reversal of 5224221 is 1224225.

It is not a de Polignac number, because 5224221 - 2² = 5224217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5224194 and 5224203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5224229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23316 + ... + 23538.

It is an arithmetic number, because the mean of its divisors is an integer number (334880).

Almost surely, 2^5224221 is an apocalyptic number.

It is an amenable number.

5224221 is a deficient number, since it is larger than the sum of its proper divisors (2812899).

5224221 is a wasteful number, since it uses less digits than its factorization.

5224221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 382 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 5224221 is about 2285.6554858508. The cubic root of 5224221 is about 173.5163939584.

Adding to 5224221 its reverse (1224225), we get a palindrome (6448446).

It can be divided in two parts, 5224 and 221, that added together give a palindrome (5445).

The spelling of 5224221 in words is "five million, two hundred twenty-four thousand, two hundred twenty-one".