She has 108 * 4 = <<108*4=432>>432 ears of corn to shuck.
She gets 500 kernels of corn from half the ears and 500 + 100 = <<500+100=600>>600 kernels from the other half.
Half the number of ears of corn is 432 / 2 = <<432/2=216>>216 ears.
Thus, Hilary has 216 * 500 + 216 * 600 = 108000 + 129600 = <<216*500+216*600=237600>>237600 kernels to shuck.
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