1030332221 has 2 divisors, whose sum is σ = 1030332222. Its totient is φ = 1030332220.

The previous prime is 1030332181. The next prime is 1030332223. The reversal of 1030332221 is 1222330301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 968143225 + 62188996 = 31115^2 + 7886^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030332221 - 2²⁶ = 963223357 is a prime.

It is a Sophie Germain prime.

Together with 1030332223, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1030332221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1030332223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515166110 + 515166111.

It is an arithmetic number, because the mean of its divisors is an integer number (515166111).

Almost surely, 2^1030332221 is an apocalyptic number.

It is an amenable number.

1030332221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030332221 is an equidigital number, since it uses as much as digits as its factorization.

1030332221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1030332221 is about 32098.7884662334. The cubic root of 1030332221 is about 1010.0102018379.

Adding to 1030332221 its reverse (1222330301), we get a palindrome (2252662522).

It can be divided in two parts, 10303 and 32221, that added together give a palindrome (42524).

The spelling of 1030332221 in words is "one billion, thirty million, three hundred thirty-two thousand, two hundred twenty-one".