10304204221 has 2 divisors, whose sum is σ = 10304204222. Its totient is φ = 10304204220.

The previous prime is 10304204219. The next prime is 10304204269. The reversal of 10304204221 is 12240240301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10240428025 + 63776196 = 101195^2 + 7986^2 .

It is a cyclic number.

It is not a de Polignac number, because 10304204221 - 2¹ = 10304204219 is a prime.

Together with 10304204219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10304204021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5152102110 + 5152102111.

It is an arithmetic number, because the mean of its divisors is an integer number (5152102111).

Almost surely, 2^10304204221 is an apocalyptic number.

It is an amenable number.

10304204221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10304204221 is an equidigital number, since it uses as much as digits as its factorization.

10304204221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 10304204221 its reverse (12240240301), we get a palindrome (22544444522).

It can be divided in two parts, 1030420 and 4221, that added together give a triangular number (1034641 = T₁₄₃₈).

The spelling of 10304204221 in words is "ten billion, three hundred four million, two hundred four thousand, two hundred twenty-one".