13343011221 has 24 divisors (see below), whose sum is σ = 18925641280. Its totient is φ = 8360174592.

The previous prime is 13343011181. The next prime is 13343011267. The reversal of 13343011221 is 12211034331.

13343011221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13343011221 - 2¹³ = 13343003029 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 (13343011271) 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 in 23 ways as a sum of consecutive naturals, for example, 619725 + ... + 640893.

Almost surely, 2^13343011221 is an apocalyptic number.

It is an amenable number.

13343011221 is a deficient number, since it is larger than the sum of its proper divisors (5582630059).

13343011221 is a wasteful number, since it uses less digits than its factorization.

13343011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21933 (or 21916 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13343011221 its reverse (12211034331), we get a palindrome (25554045552).

The spelling of 13343011221 in words is "thirteen billion, three hundred forty-three million, eleven thousand, two hundred twenty-one".