13022323313221 has 4 divisors (see below), whose sum is σ = 13268027526732. Its totient is φ = 12776619099712.

The previous prime is 13022323313189. The next prime is 13022323313249. The reversal of 13022323313221 is 12231332322031.

It is a happy number.

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 4638466764100 + 8383856549121 = 2153710^2 + 2895489^2 .

It is a cyclic number.

It is not a de Polignac number, because 13022323313221 - 2⁵ = 13022323313189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13022323313221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13022323313261) 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, 122852106676 + ... + 122852106781.

It is an arithmetic number, because the mean of its divisors is an integer number (3317006881683).

Almost surely, 2^{13022323313221} is an apocalyptic number.

It is an amenable number.

13022323313221 is a deficient number, since it is larger than the sum of its proper divisors (245704213511).

13022323313221 is an equidigital number, since it uses as much as digits as its factorization.

13022323313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245704213510.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 13022323313221 its reverse (12231332322031), we get a palindrome (25253655635252).

The spelling of 13022323313221 in words is "thirteen trillion, twenty-two billion, three hundred twenty-three million, three hundred thirteen thousand, two hundred twenty-one".