Select the number from among the given options that can replace the question mark ($?$) in the following series.
$$1,2,4,8,10,20,?$$

Let's analyze the arithmetic operations between consecutive terms of the series:
* $1\to 2$: Multiply by $2\to 1\times 2=2$
* $2\to 4$: Add $2\to 2+2=4$
* $4\to 8$: Multiply by $2\to 4\times 2=8$
* $8\to 10$: Add $2\to 8+2=10$
* $10\to 20$: Multiply by $2\to 10\times 2=20$

The series follows an alternating pattern of multiplying by $2$ ($\times 2$) and adding $2$ ($+2$).
Following this logic, the next operation should be adding $2$ ($+2$):

* $20+2=22$

Therefore, the missing number is $22$.