412044221 has 2 divisors, whose sum is σ = 412044222. Its totient is φ = 412044220.

The previous prime is 412044197. The next prime is 412044223. The reversal of 412044221 is 122440214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317196100 + 94848121 = 17810^2 + 9739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-412044221 is a prime.

It is a Sophie Germain prime.

Together with 412044223, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 412044193 and 412044202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412044223) 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, 206022110 + 206022111.

It is an arithmetic number, because the mean of its divisors is an integer number (206022111).

Almost surely, 2^412044221 is an apocalyptic number.

It is an amenable number.

412044221 is a deficient number, since it is larger than the sum of its proper divisors (1).

412044221 is an equidigital number, since it uses as much as digits as its factorization.

412044221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 412044221 is about 20298.8724071068. The cubic root of 412044221 is about 744.1285072325.

Adding to 412044221 its reverse (122440214), we get a palindrome (534484435).

The spelling of 412044221 in words is "four hundred twelve million, forty-four thousand, two hundred twenty-one".