The answer is 5.5x10 to the power of 27.
6.02x10 to the power of 23 is how many particles are in one mole.
Therefore, if there are 922 moles then by cross-multiplying I multiplied 6.02x10 to the power of 23 with 922 and that's how I got the answer of 5.5x10 to the power of 27.