5220333221 has 2 divisors, whose sum is σ = 5220333222. Its totient is φ = 5220333220.

The previous prime is 5220333203. The next prime is 5220333247. The reversal of 5220333221 is 1223330225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5138882596 + 81450625 = 71686^2 + 9025^2 .

It is a cyclic number.

It is not a de Polignac number, because 5220333221 - 2¹⁰ = 5220332197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5220333821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2610166610 + 2610166611.

It is an arithmetic number, because the mean of its divisors is an integer number (2610166611).

Almost surely, 2^5220333221 is an apocalyptic number.

It is an amenable number.

5220333221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5220333221 is an equidigital number, since it uses as much as digits as its factorization.

5220333221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 5220333221 is about 72251.8734774400. The cubic root of 5220333221 is about 1734.7334059843.

Adding to 5220333221 its reverse (1223330225), we get a palindrome (6443663446).

The spelling of 5220333221 in words is "five billion, two hundred twenty million, three hundred thirty-three thousand, two hundred twenty-one".