Math-related phobias

bicentumphobia

Fear of the number 200.

Fear of 200

Number phobias

Moderate

centummegaphobia

Fear of the number 100,000,000.

Fear of 100,000,000

Moderate

centummillephobia

Fear of the number 100,000

Fear of 100,000

Specific number phobias

Moderate

milliphobia

Fear of the number 1000.

Fear of the number 1000

Specific number phobias

Moderate

nonagintaphobia

Nonagintaphobia is the fear of the number 90.

Fear of 90

Moderate

quadricentumphobia

Fear of the number 400.

Fear of 400

Moderate

vigintiphobia

Fear of the number 20.

Fear of 20

Moderate

yottaphobia

Yottaphobia is the fear of the number 1,000,000,000,000,000,000,000,000.

Fear of the number 1,000,000,000,000,000,000,000,000

Number phobias

Moderate