Adding to 22000000 its reverse (22), we get a palindrome (22000022).
Multipling 22000000 by its reverse (22), we get a square (484000000 = 220002).
22000000 divided by its reverse (22) gives a 6-th power (1000000 = 106).
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 10.
It is a congruent number.
Almost surely, 222000000 is an apocalyptic number.
22000000 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 22000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29882430).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22000000 is an frugal number, since it uses more digits than its factorization.
22000000 is an odious number, because the sum of its binary digits is odd.
The square root of 22000000 is about 4690.4157598234. The cubic root of 22000000 is about 280.2039330655.