1324221799 has 2 divisors, whose sum is σ = 1324221800. Its totient is φ = 1324221798.

The previous prime is 1324221793. The next prime is 1324221839. The reversal of 1324221799 is 9971224231.

It is an a-pointer prime, because the next prime (1324221839) can be obtained adding 1324221799 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1324221799 - 2²³ = 1315833191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1324221793) 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, 662110899 + 662110900.

It is an arithmetic number, because the mean of its divisors is an integer number (662110900).

Almost surely, 2^1324221799 is an apocalyptic number.

1324221799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1324221799 is an equidigital number, since it uses as much as digits as its factorization.

1324221799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 1324221799 is about 36389.8584635885. The cubic root of 1324221799 is about 1098.1295482639.

The spelling of 1324221799 in words is "one billion, three hundred twenty-four million, two hundred twenty-one thousand, seven hundred ninety-nine".