Clear[x,pnp]pnp=2211282552952966643528108525502623092761208950247001539441374831912882294140\2001986512729726569746599085900330031400051170742204560859276357953757185954\2988389587092292384910067030341246205457845664136645406842143612930176940208\46391065875914794251435144458199;Show[Plot[(((((pnp^2/x)+x^2))/x)/pnp),{x,2.0*10^151,2.0*10^205}]]
Plot[((pnp-(Sqrt[(x^2*pnp^4+2*pnp*x^5)+x^8])/pnp^4-(1-(x^2/(2*pnp)))*(pnp^2/x^2))),{x,2.0*10^151,2.0*10^152}]
Clear[x,pnp]pnp=2211282552952966643528108525502623092761208950247001539441374831912882294140\2001986512729726569746599085900330031400051170742204560859276357953757185954\2988389587092292384910067030341246205457845664136645406842143612930176940208\46391065875914794251435144458199;Show[Plot[(((((pnp^2/x)+x^2))/x)/pnp),{x,0,2211282552952966643528108525502623092761208950247001539441374831912882294140\2001986512729726569746599085900330031400051170742204560859276357953757185954\2988389587092292384910067030341246205457845664136645406842143612930176940208\46391065875914794251435144458199}]]
Clear[x,pnp]pnp=2211282552952966643528108525502623092761208950247001539441374831912882294140\2001986512729726569746599085900330031400051170742204560859276357953757185954\2988389587092292384910067030341246205457845664136645406842143612930176940208\46391065875914794251435144458199;Plot[((pnp-(Sqrt[(x^2*pnp^4+2*pnp*x^5)+x^8])/pnp^4-(1-(x^2/(2*pnp)))*(pnp^2/x^2))),{x,0,2211282552952966643528108525502623092761208950247001539441374831912882294140\2001986512729726569746599085900330031400051170742204560859276357953757185954\2988389587092292384910067030341246205457845664136645406842143612930176940208\46391065875914794251435144458199}]