13221341 has 4 divisors (see below), whose sum is σ = 15110112. Its totient is φ = 11332572.

The previous prime is 13221337. The next prime is 13221347. The reversal of 13221341 is 14312231.

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.

It is a cyclic number.

It is not a de Polignac number, because 13221341 - 2² = 13221337 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 (13221347) 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, 944375 + ... + 944388.

It is an arithmetic number, because the mean of its divisors is an integer number (3777528).

Almost surely, 2^13221341 is an apocalyptic number.

It is an amenable number.

13221341 is a deficient number, since it is larger than the sum of its proper divisors (1888771).

13221341 is an equidigital number, since it uses as much as digits as its factorization.

13221341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888770.

The product of its digits is 144, while the sum is 17.

The square root of 13221341 is about 3636.1161972632. The cubic root of 13221341 is about 236.4604447939.

Adding to 13221341 its reverse (14312231), we get a palindrome (27533572).

The spelling of 13221341 in words is "thirteen million, two hundred twenty-one thousand, three hundred forty-one".