Adding to 2201000 its reverse (1022), we get a palindrome (2202022).
It is a congruent number.
It is an unprimeable number.
22201000 is an apocalyptic number.
2201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2201000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2695680).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2201000 is a wasteful number, since it uses less digits than its factorization.
2201000 is an odious number, because the sum of its binary digits is odd.
The square root of 2201000 is about 1483.5767590523. The cubic root of 2201000 is about 130.0788476312.
The spelling of 2201000 in words is "two million, two hundred one thousand".