For each of the following rings, determine its characteristic and determine if it is an integral domain.

	characteristic	integral domain? (Y/N)
$\mathbb{Z} \times \mathbb{Z}_{35}$
$\mathbb{Z}_{48} \times \mathbb{Z}_{58}$
$\mathbb{Z}_{7} \times \mathbb{Z}_{7}$
$\mathbb{Z}[x]$
$\mathbb{Z}_{12}[x]$