22219 has 4 divisors (see below), whose sum is σ = 23544. Its totient is φ = 20896.

The previous prime is 22193. The next prime is 22229. The reversal of 22219 is 91222.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22219 - 2⁷ = 22091 is a prime.

It is a super-2 number, since 2×22219² = 987367922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22229) 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, 637 + ... + 670.

It is an arithmetic number, because the mean of its divisors is an integer number (5886).

2²²²¹⁹ is an apocalyptic number.

22219 is a deficient number, since it is larger than the sum of its proper divisors (1325).

22219 is a wasteful number, since it uses less digits than its factorization.

22219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324.

The product of its digits is 72, while the sum is 16.

The square root of 22219 is about 149.0603904463. The cubic root of 22219 is about 28.1130632473.

The spelling of 22219 in words is "twenty-two thousand, two hundred nineteen".