Found with PFGW Version 3.8.0

12549^13210-13210^12549 is 2-PRP! (53.7974s+0.0108s)
12549^13210-13210^12549 is 3-PRP! (55.3219s+0.0106s)
12549^13210-13210^12549 is 5-PRP! (62.6291s+0.0112s)
12549^13210-13210^12549 is 7-PRP! (55.4191s+0.0104s)
12549^13210-13210^12549 is 11-PRP! (55.4510s+0.0113s)

Primality testing 12549^13210-13210^12549 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 11, base 7+sqrt(11)
Calling N+1 BLS with factored part 0.02% and helper 0.02% (0.09% proof)
12549^13210-13210^12549 is Fermat and Lucas PRP! (283.2962s+0.0110s)

To be completed...