Feedforward Capacitor formula for LTC3129

Could you share me the formula to find feedforward capacitor, if the feedback resistors are used in the range of Kohm and Mohm.

The datasheet formula given the results interms of microfarad but the application circuits has CFF interms of pF.

Could you clarify me?

Datasheet suggested below formula,

Let me given some example from application schematic,

if R1=2M,

Cff= 33uF 

But 33pF used in the below application circuit (refer left side figure).

Similarly if R=3.01M, Cff would be 21.92uF (~22uF), by referring right side figure it was given as 22pF.

Please give me the solution for the above.

Regards,

Malathi T