13222219 has 4 divisors (see below), whose sum is σ = 13231296. Its totient is φ = 13213144.

The previous prime is 13222207. The next prime is 13222229. The reversal of 13222219 is 91222231.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 91222231 = 1163 ⋅78437.

It is a cyclic number.

It is not a de Polignac number, because 13222219 - 2⁷ = 13222091 is a prime.

It is a super-2 number, since 2×13222219² = 349654150567922, which contains 22 as substring.

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 13222219.

It is not an unprimeable number, because it can be changed into a prime (13222229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1804 + ... + 5449.

It is an arithmetic number, because the mean of its divisors is an integer number (3307824).

Almost surely, 2^13222219 is an apocalyptic number.

13222219 is a deficient number, since it is larger than the sum of its proper divisors (9077).

13222219 is an equidigital number, since it uses as much as digits as its factorization.

13222219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9076.

The product of its digits is 432, while the sum is 22.

The square root of 13222219 is about 3636.2369284743. The cubic root of 13222219 is about 236.4656789497.

The spelling of 13222219 in words is "thirteen million, two hundred twenty-two thousand, two hundred nineteen".