200203221 has 16 divisors (see below), whose sum is σ = 275917824. Its totient is φ = 129047664.

The previous prime is 200203217. The next prime is 200203307. The reversal of 200203221 is 122302002.

It is not a de Polignac number, because 200203221 - 2² = 200203217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 200203197 and 200203206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200203121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3150 + ... + 20256.

It is an arithmetic number, because the mean of its divisors is an integer number (17244864).

Almost surely, 2^200203221 is an apocalyptic number.

It is an amenable number.

200203221 is a deficient number, since it is larger than the sum of its proper divisors (75714603).

200203221 is a wasteful number, since it uses less digits than its factorization.

200203221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17240.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 200203221 is about 14149.3187468514. The cubic root of 200203221 is about 585.0015545287.

Adding to 200203221 its reverse (122302002), we get a palindrome (322505223).

The spelling of 200203221 in words is "two hundred million, two hundred three thousand, two hundred twenty-one".