Adding to 2220100 its reverse (10222), we get a palindrome (2230322).
It is a happy number.
The square root of 2220100 is 1490.
It is a Duffinian number.
It is an unprimeable number.
22220100 is an apocalyptic number.
2220100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
2220100 is the 1490-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2220100
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2220100 is a wasteful number, since it uses less digits than its factorization.
2220100 is an odious number, because the sum of its binary digits is odd.
The cubic root of 2220100 is about 130.4540337125.
The spelling of 2220100 in words is "two million, two hundred twenty thousand, one hundred".