Adding to 1020200 its reverse (20201), we get a palindrome (1040401).
Subtracting from 1020200 its reverse (20201), we obtain a palindrome (999999).
It is an Ulam number.
It is an unprimeable number.
21020200 is an apocalyptic number.
1020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1020200 is a wasteful number, since it uses less digits than its factorization.
1020200 is an odious number, because the sum of its binary digits is odd.
The square root of 1020200 is about 1010.0495037373. The cubic root of 1020200 is about 100.6688497594.
The spelling of 1020200 in words is "one million, twenty thousand, two hundred".