432440313224221 has 2 divisors, whose sum is σ = 432440313224222. Its totient is φ = 432440313224220.

The previous prime is 432440313224173. The next prime is 432440313224281. The reversal of 432440313224221 is 122422313044234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 417149171092900 + 15291142131321 = 20424230^2 + 3910389^2 .

It is a cyclic number.

It is not a de Polignac number, because 432440313224221 - 2³¹ = 432438165740573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (432440313224281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216220156612110 + 216220156612111.

It is an arithmetic number, because the mean of its divisors is an integer number (216220156612111).

Almost surely, 2^{432440313224221} is an apocalyptic number.

It is an amenable number.

432440313224221 is a deficient number, since it is larger than the sum of its proper divisors (1).

432440313224221 is an equidigital number, since it uses as much as digits as its factorization.

432440313224221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 432440313224221 its reverse (122422313044234), we get a palindrome (554862626268455).

The spelling of 432440313224221 in words is "four hundred thirty-two trillion, four hundred forty billion, three hundred thirteen million, two hundred twenty-four thousand, two hundred twenty-one".