22245019 has 2 divisors, whose sum is σ = 22245020. Its totient is φ = 22245018.

The previous prime is 22245017. The next prime is 22245031. The reversal of 22245019 is 91054222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22245019 - 2¹ = 22245017 is a prime.

It is a super-2 number, since 2×22245019² = 989681740620722, which contains 22 as substring.

Together with 22245017, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 22244984 and 22245002.

It is not a weakly prime, because it can be changed into another prime (22245017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11122509 + 11122510.

It is an arithmetic number, because the mean of its divisors is an integer number (11122510).

Almost surely, 2^22245019 is an apocalyptic number.

22245019 is a deficient number, since it is larger than the sum of its proper divisors (1).

22245019 is an equidigital number, since it uses as much as digits as its factorization.

22245019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 22245019 is about 4716.4625515316. The cubic root of 22245019 is about 281.2403266467.

The spelling of 22245019 in words is "twenty-two million, two hundred forty-five thousand, nineteen".