200221221 has 8 divisors (see below), whose sum is σ = 281012320. Its totient is φ = 126455472.

The previous prime is 200221199. The next prime is 200221237. The reversal of 200221221 is 122122002.

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

It is not a de Polignac number, because 200221221 - 2¹⁵ = 200188453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200221197 and 200221206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200221271) 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, 1756270 + ... + 1756383.

It is an arithmetic number, because the mean of its divisors is an integer number (35126540).

Almost surely, 2^200221221 is an apocalyptic number.

It is an amenable number.

200221221 is a deficient number, since it is larger than the sum of its proper divisors (80791099).

200221221 is a wasteful number, since it uses less digits than its factorization.

200221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3512675.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 200221221 is about 14149.9548055815. The cubic root of 200221221 is about 585.0190862353.

Adding to 200221221 its reverse (122122002), we get a palindrome (322343223).

The spelling of 200221221 in words is "two hundred million, two hundred twenty-one thousand, two hundred twenty-one".