13221302213 has 4 divisors (see below), whose sum is σ = 15110059680. Its totient is φ = 11332544748.

The previous prime is 13221302207. The next prime is 13221302293. The reversal of 13221302213 is 31220312231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31220312231 = 16729 ⋅1866239.

It is not a de Polignac number, because 13221302213 - 2⁴ = 13221302197 is a prime.

It is a super-3 number, since 3×13221302213³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221302293) 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, 944378723 + ... + 944378736.

It is an arithmetic number, because the mean of its divisors is an integer number (3777514920).

Almost surely, 2^13221302213 is an apocalyptic number.

It is an amenable number.

13221302213 is a deficient number, since it is larger than the sum of its proper divisors (1888757467).

13221302213 is an equidigital number, since it uses as much as digits as its factorization.

13221302213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888757466.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13221302213 its reverse (31220312231), we get a palindrome (44441614444).

The spelling of 13221302213 in words is "thirteen billion, two hundred twenty-one million, three hundred two thousand, two hundred thirteen".