221303201 has 8 divisors (see below), whose sum is σ = 253184640. Its totient is φ = 189488448.

The previous prime is 221303189. The next prime is 221303209. The reversal of 221303201 is 102303122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 221303201 - 2²² = 217108897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221303209) 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, 9341 + ... + 23018.

It is an arithmetic number, because the mean of its divisors is an integer number (31648080).

Almost surely, 2^221303201 is an apocalyptic number.

It is an amenable number.

221303201 is a deficient number, since it is larger than the sum of its proper divisors (31881439).

221303201 is an equidigital number, since it uses as much as digits as its factorization.

221303201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33343.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 221303201 is about 14876.2630052040. The cubic root of 221303201 is about 604.8707243763.

Adding to 221303201 its reverse (102303122), we get a palindrome (323606323).

The spelling of 221303201 in words is "two hundred twenty-one million, three hundred three thousand, two hundred one".