5222221 has 4 divisors (see below), whose sum is σ = 5343712. Its totient is φ = 5100732.

The previous prime is 5222197. The next prime is 5222237. The reversal of 5222221 is 1222225.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5222221 - 2⁹ = 5221709 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 5222195 and 5222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5222251) 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, 60681 + ... + 60766.

It is an arithmetic number, because the mean of its divisors is an integer number (1335928).

Almost surely, 2^5222221 is an apocalyptic number.

It is an amenable number.

5222221 is a deficient number, since it is larger than the sum of its proper divisors (121491).

5222221 is a wasteful number, since it uses less digits than its factorization.

5222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121490.

The product of its digits is 160, while the sum is 16.

The square root of 5222221 is about 2285.2179327145. The cubic root of 5222221 is about 173.4942485781.

Adding to 5222221 its reverse (1222225), we get a palindrome (6444446).

The spelling of 5222221 in words is "five million, two hundred twenty-two thousand, two hundred twenty-one".