Question

If

January = 101025 
February = 6525 
March = 13188 
April = 1912 
May = 13125 
June = 10215 

Then

July = ?

Answer 1

It's 101225 to represent letters JLY.

Logic:
J being first letter, Y being last letter and L being the letter at the position of the calendar number of the month in question (for January-1st letter, for Feb-2nd letter... July-7th letter which is third).

Answer 2

102125
First letter count in the alphabet is first digit i.e. J --> 10
Last letter count in the alphabet is first digit i.e. Y --> 25

Now see this logic
January -- First Vowel is a so middle digit is 1 (but repeated so 10)
February -- First Vowel is e so middle digit is 5
March -- First Vowel is a so middle digit is 1
April -- First Vowel is i so middle digit is 9
May -- First Vowel is a so middle digit is 1
June -- First Vowel is u so middle digit is 21

July -- First vowel is u so middle digit is 21

hence number is 102125