10001221303 has 2 divisors, whose sum is σ = 10001221304. Its totient is φ = 10001221302.

The previous prime is 10001221291. The next prime is 10001221313. The reversal of 10001221303 is 30312210001.

10001221303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10001221303 - 2⁹ = 10001220791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10001221313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000610651 + 5000610652.

It is an arithmetic number, because the mean of its divisors is an integer number (5000610652).

Almost surely, 2^10001221303 is an apocalyptic number.

10001221303 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001221303 is an equidigital number, since it uses as much as digits as its factorization.

10001221303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 10001221303 its reverse (30312210001), we get a palindrome (40313431304).

The spelling of 10001221303 in words is "ten billion, one million, two hundred twenty-one thousand, three hundred three".