5722221 has 8 divisors (see below), whose sum is σ = 7641504. Its totient is φ = 3808880.

The previous prime is 5722219. The next prime is 5722243. The reversal of 5722221 is 1222275.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5722221 - 2¹ = 5722219 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5722201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1810 + ... + 3836.

It is an arithmetic number, because the mean of its divisors is an integer number (955188).

Almost surely, 2^5722221 is an apocalyptic number.

It is an amenable number.

5722221 is a deficient number, since it is larger than the sum of its proper divisors (1919283).

5722221 is a wasteful number, since it uses less digits than its factorization.

5722221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2971.

The product of its digits is 560, while the sum is 21.

The square root of 5722221 is about 2392.1164269324. The cubic root of 5722221 is about 178.8634248412.

Adding to 5722221 its reverse (1222275), we get a palindrome (6944496).

The spelling of 5722221 in words is "five million, seven hundred twenty-two thousand, two hundred twenty-one".