1000330322221 has 2 divisors, whose sum is σ = 1000330322222. Its totient is φ = 1000330322220.

The previous prime is 1000330322179. The next prime is 1000330322269. The reversal of 1000330322221 is 1222230330001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 675373319721 + 324957002500 = 821811^2 + 570050^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000330322221 - 2²⁷ = 1000196104493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000330322021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500165161110 + 500165161111.

It is an arithmetic number, because the mean of its divisors is an integer number (500165161111).

Almost surely, 2^{1000330322221} is an apocalyptic number.

It is an amenable number.

1000330322221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000330322221 is an equidigital number, since it uses as much as digits as its factorization.

1000330322221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1000330322221 its reverse (1222230330001), we get a palindrome (2222560652222).

The spelling of 1000330322221 in words is "one trillion, three hundred thirty million, three hundred twenty-two thousand, two hundred twenty-one".