Reg : Getting Difference of 2 polygons

Hello All ,

I have 200, 000 features in Polygon_A Feature Class . Another Feature class Polygon_B having 210,000 . Whenever I run Intersect Tool I run into Topology Error . I have run Check Geometry on both the feature classes (No error in the data ) .. I hav also tried to dissolve the feature class and then run Intersect tool .. Still same error

Can anybody suggest me any workaround for intersect tool ..

And Also How to utilize arcpy.Geometry.Overlap property and get the area of the polygon which is common to intersecting features .. Any ideas much appreciated ..