1030242221 has 2 divisors, whose sum is σ = 1030242222. Its totient is φ = 1030242220.

The previous prime is 1030242217. The next prime is 1030242259. The reversal of 1030242221 is 1222420301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 794619721 + 235622500 = 28189^2 + 15350^2 .

It is an emirp because it is prime and its reverse (1222420301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1030242221 - 2² = 1030242217 is a prime.

It is a super-2 number, since 2×1030242221² = 2122798067862025682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1030242221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1030242271) 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, 515121110 + 515121111.

It is an arithmetic number, because the mean of its divisors is an integer number (515121111).

Almost surely, 2^1030242221 is an apocalyptic number.

It is an amenable number.

1030242221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030242221 is an equidigital number, since it uses as much as digits as its factorization.

1030242221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1030242221 is about 32097.3865135466. The cubic root of 1030242221 is about 1009.9807926942.

Adding to 1030242221 its reverse (1222420301), we get a palindrome (2252662522).

The spelling of 1030242221 in words is "one billion, thirty million, two hundred forty-two thousand, two hundred twenty-one".