233201221 has 8 divisors (see below), whose sum is σ = 255060000. Its totient is φ = 211452240.

The previous prime is 233201161. The next prime is 233201233. The reversal of 233201221 is 122102332.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233201221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 233201195 and 233201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233201821) 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, 22971 + ... + 31528.

It is an arithmetic number, because the mean of its divisors is an integer number (31882500).

Almost surely, 2^233201221 is an apocalyptic number.

It is an amenable number.

233201221 is a deficient number, since it is larger than the sum of its proper divisors (21858779).

233201221 is a wasteful number, since it uses less digits than its factorization.

233201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54899.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 233201221 is about 15270.9273130351. The cubic root of 233201221 is about 615.5220376339.

Adding to 233201221 its reverse (122102332), we get a palindrome (355303553).

The spelling of 233201221 in words is "two hundred thirty-three million, two hundred one thousand, two hundred twenty-one".