411144720221 has 2 divisors, whose sum is σ = 411144720222. Its totient is φ = 411144720220.

The previous prime is 411144720109. The next prime is 411144720227. The reversal of 411144720221 is 122027441114.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 409777939321 + 1366780900 = 640139^2 + 36970^2 .

It is a cyclic number.

It is not a de Polignac number, because 411144720221 - 2¹⁰ = 411144719197 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 (411144720227) 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, 205572360110 + 205572360111.

It is an arithmetic number, because the mean of its divisors is an integer number (205572360111).

Almost surely, 2^411144720221 is an apocalyptic number.

It is an amenable number.

411144720221 is a deficient number, since it is larger than the sum of its proper divisors (1).

411144720221 is an equidigital number, since it uses as much as digits as its factorization.

411144720221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 29.

The spelling of 411144720221 in words is "four hundred eleven billion, one hundred forty-four million, seven hundred twenty thousand, two hundred twenty-one".