1244414221 has 2 divisors, whose sum is σ = 1244414222. Its totient is φ = 1244414220.

The previous prime is 1244414201. The next prime is 1244414243. The reversal of 1244414221 is 1224144421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 868480900 + 375933321 = 29470^2 + 19389^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244414221 - 2¹¹ = 1244412173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1244414201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622207110 + 622207111.

It is an arithmetic number, because the mean of its divisors is an integer number (622207111).

Almost surely, 2^1244414221 is an apocalyptic number.

It is an amenable number.

1244414221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244414221 is an equidigital number, since it uses as much as digits as its factorization.

1244414221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2048, while the sum is 25.

The square root of 1244414221 is about 35276.2557678674. The cubic root of 1244414221 is about 1075.6103895344.

Adding to 1244414221 its reverse (1224144421), we get a palindrome (2468558642).

The spelling of 1244414221 in words is "one billion, two hundred forty-four million, four hundred fourteen thousand, two hundred twenty-one".