10333332221 has 2 divisors, whose sum is σ = 10333332222. Its totient is φ = 10333332220.

The previous prime is 10333332209. The next prime is 10333332277. The reversal of 10333332221 is 12223333301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6969912196 + 3363420025 = 83486^2 + 57995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10333332221 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10333332421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5166666110 + 5166666111.

It is an arithmetic number, because the mean of its divisors is an integer number (5166666111).

Almost surely, 2^10333332221 is an apocalyptic number.

It is an amenable number.

10333332221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10333332221 is an equidigital number, since it uses as much as digits as its factorization.

10333332221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 10333332221 its reverse (12223333301), we get a palindrome (22556665522).

The spelling of 10333332221 in words is "ten billion, three hundred thirty-three million, three hundred thirty-two thousand, two hundred twenty-one".