You know that our Human Body is made up of cells. But How many?
It would be impossible for you to count the number of cells inside the human body.
But Normal estimation of total cells inside human body, approximately 100 trillion cells and each cell is made up of approximately 100 trillion atoms.

200 types of cells in human body
100 trillion cells
100 trillion atoms
Average human cell weigh (1 nanogram)

There are approximately 100 trillion cells in the human body including bacterial cells.

This is still only an estimate.