If f = x²yz and g = xy – 3z², then the value of ∇⋅(∇f × ∇g) at (1, -1, 2) is ______

Enter numerical value using the virtual keypad. Round off where necessary.

If f = x2yz and g = xy – 3z2, then the value of ∇⋅(∇f × ∇g) at (1, -1, 2) is ______