It is a happy number.
It is a congruent number.
It is an unprimeable number.
Almost surely, 2220220011120220 is an apocalyptic number.
220220011120220 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 220220011120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237418270689600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
220220011120220 is a wasteful number, since it uses less digits than its factorization.
220220011120220 is an evil number, because the sum of its binary digits is even.
Adding to 220220011120220 its reverse (22021110022022), we get a palindrome (242241121142242).
The spelling of 220220011120220 in words is "two hundred twenty trillion, two hundred twenty billion, eleven million, one hundred twenty thousand, two hundred twenty".