If the social security base in Wenzhou, Zhejiang is 22,000 yuan, the monthly deduction amount mainly depends on different insurance types and their respective contribution ratios. Here's a breakdown:

1. Pension Insurance: Usually, the individual contribution ratio for pension insurance is 8%. So, for a base of 22,000 yuan, the individual monthly deduction is ​
   ×8%=
   yuan.

2. Medical Insurance: Generally, the individual contribution ratio for medical insurance is 2%. Thus, the individual monthly deduction for medical insurance is ​
   ×2%=
   yuan. Additionally, there may be a fixed social medical assistance fee, such as 6 yuan per month in some cases.

3. Unemployment Insurance: The individual contribution ratio for unemployment insurance is typically 0.5%. So, the individual monthly deduction for unemployment insurance is ​
   ×0.5%=
   yuan.

4. Other Insurance: For industrial injury insurance and maternity insurance, employees generally do not bear the contribution, and they are paid entirely by the employer.

In summary, when the social security base in Wenzhou is 22,000 yuan, the total monthly social security deduction for individuals mainly for pension, medical, and unemployment insurance is approximately ​