22021319 has 2 divisors, whose sum is σ = 22021320. Its totient is φ = 22021318.

The previous prime is 22021301. The next prime is 22021331. The reversal of 22021319 is 91312022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22021319 - 2¹⁶ = 21955783 is a prime.

It is a super-2 number, since 2×22021319² = 969876980999522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22021319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22021819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010659 + 11010660.

It is an arithmetic number, because the mean of its divisors is an integer number (11010660).

Almost surely, 2^22021319 is an apocalyptic number.

22021319 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021319 is an equidigital number, since it uses as much as digits as its factorization.

22021319 is an odious number, because the sum of its binary digits is odd.

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

The square root of 22021319 is about 4692.6878225597. The cubic root of 22021319 is about 280.2944139610.

The spelling of 22021319 in words is "twenty-two million, twenty-one thousand, three hundred nineteen".