And if you're trying to Google or wiki the concept, it's called the moment of inertia.

https://en.m.wikipedia.org/wiki/Moment_of_inertia

It's discussed in terms of inertia and momentum, but these quantities are the useful quantities when discussing rotation about an axis.

Speaking loosly, applying a force perpendicular to the radius of a rotating body changes its angular velocity, which is a factor of momentum. The moment of inertia determines in part how large the torque on the mass is for a given force about the center.