441023020320221 has 2 divisors, whose sum is σ = 441023020320222. Its totient is φ = 441023020320220.

The previous prime is 441023020320097. The next prime is 441023020320277. The reversal of 441023020320221 is 122023020320144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 432769552096996 + 8253468223225 = 20803114^2 + 2872885^2 .

It is a cyclic number.

It is not a de Polignac number, because 441023020320221 - 2¹⁴ = 441023020303837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (441023020020221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220511510160110 + 220511510160111.

It is an arithmetic number, because the mean of its divisors is an integer number (220511510160111).

Almost surely, 2^{441023020320221} is an apocalyptic number.

It is an amenable number.

441023020320221 is a deficient number, since it is larger than the sum of its proper divisors (1).

441023020320221 is an equidigital number, since it uses as much as digits as its factorization.

441023020320221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 441023020320221 its reverse (122023020320144), we get a palindrome (563046040640365).

The spelling of 441023020320221 in words is "four hundred forty-one trillion, twenty-three billion, twenty million, three hundred twenty thousand, two hundred twenty-one".