22271219 has 2 divisors, whose sum is σ = 22271220. Its totient is φ = 22271218.

The previous prime is 22271213. The next prime is 22271231. The reversal of 22271219 is 91217222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22271219 - 2²⁴ = 5494003 is a prime.

It is a super-2 number, since 2×22271219² = 992014391491922, which contains 22 as substring.

It is a Chen prime.

It is equal to p_1405187 and since 22271219 and 1405187 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (22271213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11135609 + 11135610.

It is an arithmetic number, because the mean of its divisors is an integer number (11135610).

Almost surely, 2^22271219 is an apocalyptic number.

22271219 is a deficient number, since it is larger than the sum of its proper divisors (1).

22271219 is an equidigital number, since it uses as much as digits as its factorization.

22271219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 26.

The square root of 22271219 is about 4719.2392395385. The cubic root of 22271219 is about 281.3506975062.

The spelling of 22271219 in words is "twenty-two million, two hundred seventy-one thousand, two hundred nineteen".