200540221 has 8 divisors (see below), whose sum is σ = 229372160. Its totient is φ = 171754128.

The previous prime is 200540203. The next prime is 200540251. The reversal of 200540221 is 122045002.

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

It is not a de Polignac number, because 200540221 - 2⁹ = 200539709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200540195 and 200540204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200540251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1506 + ... + 20083.

It is an arithmetic number, because the mean of its divisors is an integer number (28671520).

Almost surely, 2^200540221 is an apocalyptic number.

It is an amenable number.

200540221 is a deficient number, since it is larger than the sum of its proper divisors (28831939).

200540221 is a wasteful number, since it uses less digits than its factorization.

200540221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22923.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 200540221 is about 14161.2224401709. Note that the first 3 decimals coincide. The cubic root of 200540221 is about 585.3296128695.

Adding to 200540221 its reverse (122045002), we get a palindrome (322585223).

The spelling of 200540221 in words is "two hundred million, five hundred forty thousand, two hundred twenty-one".