Adding to 212021121333 its reverse (333121120212), we get a palindrome (545142241545).
212021121333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 10096243873 = 212021121333 / (2 + 1 + 2 + 0 + 2 + 1 + 1 + 2 + 1 + 3 + 3 + 3).
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
Almost surely, 2212021121333 is an apocalyptic number.
It is an amenable number.
212021121333 is a wasteful number, since it uses less digits than its factorization.
212021121333 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10096243883.
The spelling of 212021121333 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-one thousand, three hundred thirty-three".