22065019 has 2 divisors, whose sum is σ = 22065020. Its totient is φ = 22065018.

The previous prime is 22065007. The next prime is 22065037. The reversal of 22065019 is 91056022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22065019 - 2¹⁹ = 21540731 is a prime.

It is a super-2 number, since 2×22065019² = 973730126940722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22064984 and 22065002.

It is not a weakly prime, because it can be changed into another prime (22065059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11032509 + 11032510.

It is an arithmetic number, because the mean of its divisors is an integer number (11032510).

Almost surely, 2^22065019 is an apocalyptic number.

22065019 is a deficient number, since it is larger than the sum of its proper divisors (1).

22065019 is an equidigital number, since it uses as much as digits as its factorization.

22065019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 22065019 is about 4697.3416950441. The cubic root of 22065019 is about 280.4797006587.

It can be divided in two parts, 2206 and 5019, that added together give a square (7225 = 85²).

The spelling of 22065019 in words is "twenty-two million, sixty-five thousand, nineteen".