5366004240221 has 2 divisors, whose sum is σ = 5366004240222. Its totient is φ = 5366004240220.

The previous prime is 5366004240211. The next prime is 5366004240307. The reversal of 5366004240221 is 1220424006635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5116693764121 + 249310476100 = 2262011^2 + 499310^2 .

It is a cyclic number.

It is not a de Polignac number, because 5366004240221 - 2¹⁸ = 5366003978077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5366004240211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2683002120110 + 2683002120111.

It is an arithmetic number, because the mean of its divisors is an integer number (2683002120111).

Almost surely, 2^{5366004240221} is an apocalyptic number.

It is an amenable number.

5366004240221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5366004240221 is an equidigital number, since it uses as much as digits as its factorization.

5366004240221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 5366004240221 its reverse (1220424006635), we get a palindrome (6586428246856).

The spelling of 5366004240221 in words is "five trillion, three hundred sixty-six billion, four million, two hundred forty thousand, two hundred twenty-one".