200203210221 has 16 divisors (see below), whose sum is σ = 305078329344. Its totient is φ = 114399295344.

The previous prime is 200203210219. The next prime is 200203210247. The reversal of 200203210221 is 122012302002.

It is a happy number.

It is not a de Polignac number, because 200203210221 - 2¹ = 200203210219 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 200203210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200203210261) 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, 1293060 + ... + 1439586.

It is an arithmetic number, because the mean of its divisors is an integer number (19067395584).

Almost surely, 2^200203210221 is an apocalyptic number.

200203210221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

200203210221 is a deficient number, since it is larger than the sum of its proper divisors (104875119123).

200203210221 is a wasteful number, since it uses less digits than its factorization.

200203210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211600.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 200203210221 its reverse (122012302002), we get a palindrome (322215512223).

The spelling of 200203210221 in words is "two hundred billion, two hundred three million, two hundred ten thousand, two hundred twenty-one".