233221216 has 12 divisors (see below), whose sum is σ = 459154332. Its totient is φ = 116610592.

The previous prime is 233221189. The next prime is 233221237. The reversal of 233221216 is 612122332.

233221216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3644050 + ... + 3644113.

It is an arithmetic number, because the mean of its divisors is an integer number (38262861).

Almost surely, 2^233221216 is an apocalyptic number.

It is an amenable number.

233221216 is a deficient number, since it is larger than the sum of its proper divisors (225933116).

233221216 is an equidigital number, since it uses as much as digits as its factorization.

233221216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7288173 (or 7288165 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 233221216 is about 15271.5819743732. The cubic root of 233221216 is about 615.5396290390.

Adding to 233221216 its reverse (612122332), we get a palindrome (845343548).

The spelling of 233221216 in words is "two hundred thirty-three million, two hundred twenty-one thousand, two hundred sixteen".