200043221 has 4 divisors (see below), whose sum is σ = 228620832. Its totient is φ = 171465612.

The previous prime is 200043209. The next prime is 200043227. The reversal of 200043221 is 122340002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122340002 = 2 ⋅61170001.

It is a cyclic number.

It is not a de Polignac number, because 200043221 - 2¹⁰ = 200042197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200043196 and 200043205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200043227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14288795 + ... + 14288808.

It is an arithmetic number, because the mean of its divisors is an integer number (57155208).

Almost surely, 2^200043221 is an apocalyptic number.

It is an amenable number.

200043221 is a deficient number, since it is larger than the sum of its proper divisors (28577611).

200043221 is an equidigital number, since it uses as much as digits as its factorization.

200043221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28577610.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 200043221 is about 14143.6636342922. The cubic root of 200043221 is about 584.8456709319.

Adding to 200043221 its reverse (122340002), we get a palindrome (322383223).

The spelling of 200043221 in words is "two hundred million, forty-three thousand, two hundred twenty-one".