Sorry, but that doesn't make the slightest bit of sense. Planck length is measured in metres. If you 'invert' the Planck length, the answer is not in metres it is 'per metre'.

The Planck length is  1.6* 10^-35 metres.
The inverse of the Planck length is 6.2* 10^34 per metre.

All that this is telling you is that there are 6.2* 10^34 Planck lengths per metre. It has no relevance beyond that. And given that 'metre' is an arbitrary human measurement with no wider significance, then really the inverse of the Planck length has no meaning at all.

If we talk about the Planck length, we mean how many metres in a Planck length.
If we talk about the inverse of the Planck length, we mean how many Planck lengths in a metre.

There is absolutely no wider significance. It is just another way of saying the same thing. All that we are doing is putting one distance measurement in terms of the other.