13221214 has 4 divisors (see below), whose sum is σ = 19831824. Its totient is φ = 6610606.

The previous prime is 13221209. The next prime is 13221227. The reversal of 13221214 is 41212231.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3305302 + ... + 3305305.

It is an arithmetic number, because the mean of its divisors is an integer number (4957956).

Almost surely, 2^13221214 is an apocalyptic number.

13221214 is a deficient number, since it is larger than the sum of its proper divisors (6610610).

13221214 is an equidigital number, since it uses as much as digits as its factorization.

13221214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6610609.

The product of its digits is 96, while the sum is 16.

The square root of 13221214 is about 3636.0987335330. The cubic root of 13221214 is about 236.4596876702.

Adding to 13221214 its reverse (41212231), we get a palindrome (54433445).

It can be divided in two parts, 13 and 221214, that multiplied together give a palindrome (2875782).

The spelling of 13221214 in words is "thirteen million, two hundred twenty-one thousand, two hundred fourteen".