10331213303221 has 4 divisors (see below), whose sum is σ = 10331221099500. Its totient is φ = 10331205506944.

The previous prime is 10331213303207. The next prime is 10331213303263. The reversal of 10331213303221 is 12230331213301.

10331213303221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1682496946321 + 8648716356900 = 1297111^2 + 2940870^2 .

It is a cyclic number.

It is not a de Polignac number, because 10331213303221 - 2⁵ = 10331213303189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10131213303221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1359196 + ... + 4744453.

It is an arithmetic number, because the mean of its divisors is an integer number (2582805274875).

Almost surely, 2^{10331213303221} is an apocalyptic number.

It is an amenable number.

10331213303221 is a deficient number, since it is larger than the sum of its proper divisors (7796279).

10331213303221 is an equidigital number, since it uses as much as digits as its factorization.

10331213303221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7796278.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 10331213303221 its reverse (12230331213301), we get a palindrome (22561544516522).

The spelling of 10331213303221 in words is "ten trillion, three hundred thirty-one billion, two hundred thirteen million, three hundred three thousand, two hundred twenty-one".