Adding to 20205200 its reverse (250202), we get a palindrome (20455402).
It is an unprimeable number.
Almost surely, 220205200 is an apocalyptic number.
20205200 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 pseudoperfect number, because it is the sum of a subset of its proper divisors.
20205200 is a wasteful number, since it uses less digits than its factorization.
20205200 is an evil number, because the sum of its binary digits is even.
The square root of 20205200 is about 4495.0194660313. The cubic root of 20205200 is about 272.3669355670.
The spelling of 20205200 in words is "twenty million, two hundred five thousand, two hundred".