22118519 has 2 divisors, whose sum is σ = 22118520. Its totient is φ = 22118518.

The previous prime is 22118501. The next prime is 22118533. The reversal of 22118519 is 91581122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22118519 - 2²⁰ = 21069943 is a prime.

It is a super-2 number, since 2×22118519² = 978457765506722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22118491 and 22118500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22118599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11059259 + 11059260.

It is an arithmetic number, because the mean of its divisors is an integer number (11059260).

Almost surely, 2^22118519 is an apocalyptic number.

22118519 is a deficient number, since it is larger than the sum of its proper divisors (1).

22118519 is an equidigital number, since it uses as much as digits as its factorization.

22118519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 29.

The square root of 22118519 is about 4703.0329575711. The cubic root of 22118519 is about 280.7062062792.

The spelling of 22118519 in words is "twenty-two million, one hundred eighteen thousand, five hundred nineteen".