Adding to 4021443343212 its reverse (2123433441204), we get a palindrome (6144876784416).
4021443343212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an unprimeable number.
Almost surely, 24021443343212 is an apocalyptic number.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
4021443343212 is a wasteful number, since it uses less digits than its factorization.
4021443343212 is an odious number, because the sum of its binary digits is odd.
The spelling of 4021443343212 in words is "four trillion, twenty-one billion, four hundred forty-three million, three hundred forty-three thousand, two hundred twelve".