22005019 has 2 divisors, whose sum is σ = 22005020. Its totient is φ = 22005018.

The previous prime is 22005013. The next prime is 22005031. The reversal of 22005019 is 91050022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22005019 - 2⁷ = 22004891 is a prime.

It is a super-2 number, since 2×22005019² = 968441722380722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22004987 and 22005005.

It is not a weakly prime, because it can be changed into another prime (22005013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11002509 + 11002510.

It is an arithmetic number, because the mean of its divisors is an integer number (11002510).

Almost surely, 2^22005019 is an apocalyptic number.

22005019 is a deficient number, since it is larger than the sum of its proper divisors (1).

22005019 is an equidigital number, since it uses as much as digits as its factorization.

22005019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 22005019 is about 4690.9507565098. The cubic root of 22005019 is about 280.2252396808.

The spelling of 22005019 in words is "twenty-two million, five thousand, nineteen".