200201221 has 8 divisors (see below), whose sum is σ = 218513088. Its totient is φ = 181908000.

The previous prime is 200201213. The next prime is 200201227. The reversal of 200201221 is 122102002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200201221 - 2³ = 200201213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200201198 and 200201207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200201227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27441 + ... + 33961.

It is an arithmetic number, because the mean of its divisors is an integer number (27314136).

Almost surely, 2^200201221 is an apocalyptic number.

It is an amenable number.

200201221 is a deficient number, since it is larger than the sum of its proper divisors (18311867).

200201221 is a wasteful number, since it uses less digits than its factorization.

200201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9323.

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

The square root of 200201221 is about 14149.2480718941. The cubic root of 200201221 is about 584.9996064964. Note that the first 3 decimals are identical.

Adding to 200201221 its reverse (122102002), we get a palindrome (322303223).

The spelling of 200201221 in words is "two hundred million, two hundred one thousand, two hundred twenty-one".