201340221 has 8 divisors (see below), whose sum is σ = 268519200. Its totient is φ = 134194032.

The previous prime is 201340219. The next prime is 201340241. The reversal of 201340221 is 122043102.

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

It is not a de Polignac number, because 201340221 - 2¹ = 201340219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201340221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201340201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19626 + ... + 28068.

It is an arithmetic number, because the mean of its divisors is an integer number (33564900).

Almost surely, 2^201340221 is an apocalyptic number.

It is an amenable number.

201340221 is a deficient number, since it is larger than the sum of its proper divisors (67178979).

201340221 is an equidigital number, since it uses as much as digits as its factorization.

201340221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16395.

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

The square root of 201340221 is about 14189.4404752266. The cubic root of 201340221 is about 586.1069172836.

Adding to 201340221 its reverse (122043102), we get a palindrome (323383323).

The spelling of 201340221 in words is "two hundred one million, three hundred forty thousand, two hundred twenty-one".