I need to resize several panos to 3300 to 6600 and 6600 to 132000 with a 2x1 format.
Can you explain this more detailed? You mean you need to up-scale an equirectangular image from 6600 to 132000px??
Please do not do this. It will be a desaster. You can´t blow up an image this much.
What do you mean "to 2x1format"?
For doing an interactive spherical image you need to render it 2:1. If you haven´t 2:1 the result will be heavily distorted.
You can crop the image-plane in the PTP-editor for having it un-distorted though it´s not 2:1.
But "resizing" it in the sense of blowing it up to x-times the size - 6600px to 132000px - means extreme interpolation due to up-scaling.
If you need the size of 132000px you need to shoot it in a way which provides the size in the stitching and rendering natively - without up-scaling by interpolation.