13220219 has 4 divisors (see below), whose sum is σ = 13916040. Its totient is φ = 12524400.

The previous prime is 13220213. The next prime is 13220231. The reversal of 13220219 is 91202231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91202231 = 47 ⋅1940473.

It is a cyclic number.

It is not a de Polignac number, because 13220219 - 2¹⁶ = 13154683 is a prime.

It is a super-2 number, since 2×13220219² = 349548380815922, 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 13220219.

It is not an unprimeable number, because it can be changed into a prime (13220213) 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, 347882 + ... + 347919.

It is an arithmetic number, because the mean of its divisors is an integer number (3479010).

Almost surely, 2^13220219 is an apocalyptic number.

13220219 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13220219 is a deficient number, since it is larger than the sum of its proper divisors (695821).

13220219 is an equidigital number, since it uses as much as digits as its factorization.

13220219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695820.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 13220219 is about 3635.9619084913. The cubic root of 13220219 is about 236.4537557063.

The spelling of 13220219 in words is "thirteen million, two hundred twenty thousand, two hundred nineteen".