Adding to 22000 its reverse (22), we get a palindrome (22022).
22000 divided by its reverse (22) gives a cube (1000 = 103).
It is a tau number, because it is divible by the number of its divisors (40).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is a nialpdrome in base 10.
It is a zygodrome in base 4 and base 10.
It is a congruent number.
222000 is an apocalyptic number.
22000 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 22000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29016).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22000 is a wasteful number, since it uses less digits than its factorization.
22000 is an evil number, because the sum of its binary digits is even.
The square root of 22000 is about 148.3239697419. The cubic root of 22000 is about 28.0203933066.
The spelling of 22000 in words is "twenty-two thousand", and thus it is an iban number.