5222226221 has 2 divisors, whose sum is σ = 5222226222. Its totient is φ = 5222226220.

The previous prime is 5222226197. The next prime is 5222226223. The reversal of 5222226221 is 1226222225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2860752196 + 2361474025 = 53486^2 + 48595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5222226221 is a prime.

Together with 5222226223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5222226223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2611113110 + 2611113111.

It is an arithmetic number, because the mean of its divisors is an integer number (2611113111).

Almost surely, 2^5222226221 is an apocalyptic number.

It is an amenable number.

5222226221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5222226221 is an equidigital number, since it uses as much as digits as its factorization.

5222226221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 26.

The square root of 5222226221 is about 72264.9722964037. The cubic root of 5222226221 is about 1734.9430639600.

Adding to 5222226221 its reverse (1226222225), we get a palindrome (6448448446).

The spelling of 5222226221 in words is "five billion, two hundred twenty-two million, two hundred twenty-six thousand, two hundred twenty-one".