200021212 has 12 divisors (see below), whose sum is σ = 352185736. Its totient is φ = 99396720.

The previous prime is 200021209. The next prime is 200021219. The reversal of 200021212 is 212120002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152739 + ... + 154042.

Almost surely, 2^200021212 is an apocalyptic number.

It is an amenable number.

200021212 is a deficient number, since it is larger than the sum of its proper divisors (152164524).

200021212 is a wasteful number, since it uses less digits than its factorization.

200021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306948 (or 306946 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 200021212 is about 14142.8855612990. The cubic root of 200021212 is about 584.8242216664.

Adding to 200021212 its reverse (212120002), we get a palindrome (412141214).

The spelling of 200021212 in words is "two hundred million, twenty-one thousand, two hundred twelve".