10331221321321 has 4 divisors (see below), whose sum is σ = 10331248393044. Its totient is φ = 10331194249600.

The previous prime is 10331221321279. The next prime is 10331221321339. The reversal of 10331221321321 is 12312312213301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 515933341225 + 9815287980096 = 718285^2 + 3132936^2 .

It is a cyclic number.

It is not a de Polignac number, because 10331221321321 - 2¹³ = 10331221313129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10331221328321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12955120 + ... + 13729441.

It is an arithmetic number, because the mean of its divisors is an integer number (2582812098261).

Almost surely, 2^{10331221321321} is an apocalyptic number.

It is an amenable number.

10331221321321 is a deficient number, since it is larger than the sum of its proper divisors (27071723).

10331221321321 is an equidigital number, since it uses as much as digits as its factorization.

10331221321321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27071722.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 10331221321321 its reverse (12312312213301), we get a palindrome (22643533534622).

The spelling of 10331221321321 in words is "ten trillion, three hundred thirty-one billion, two hundred twenty-one million, three hundred twenty-one thousand, three hundred twenty-one".