22015219 has 2 divisors, whose sum is σ = 22015220. Its totient is φ = 22015218.

The previous prime is 22015207. The next prime is 22015241. The reversal of 22015219 is 91251022.

It is an a-pointer prime, because the next prime (22015241) can be obtained adding 22015219 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22015219 - 2¹⁵ = 21982451 is a prime.

It is a super-2 number, since 2×22015219² = 969339735235922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22015219.

It is not a weakly prime, because it can be changed into another prime (22015249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11007609 + 11007610.

It is an arithmetic number, because the mean of its divisors is an integer number (11007610).

Almost surely, 2^22015219 is an apocalyptic number.

22015219 is a deficient number, since it is larger than the sum of its proper divisors (1).

22015219 is an equidigital number, since it uses as much as digits as its factorization.

22015219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 22015219 is about 4692.0378301970. The cubic root of 22015219 is about 280.2685306519.

The spelling of 22015219 in words is "twenty-two million, fifteen thousand, two hundred nineteen".