233233221 has 8 divisors (see below), whose sum is σ = 334899040. Its totient is φ = 143528112.

The previous prime is 233233211. The next prime is 233233261. The reversal of 233233221 is 122332332.

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

It is not a de Polignac number, because 233233221 - 2⁹ = 233232709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233233211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2990131 + ... + 2990208.

It is an arithmetic number, because the mean of its divisors is an integer number (41862380).

Almost surely, 2^233233221 is an apocalyptic number.

It is an amenable number.

233233221 is a deficient number, since it is larger than the sum of its proper divisors (101665819).

233233221 is a wasteful number, since it uses less digits than its factorization.

233233221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5980355.

The product of its digits is 1296, while the sum is 21.

The square root of 233233221 is about 15271.9750196234. The cubic root of 233233221 is about 615.5501904373.

Adding to 233233221 its reverse (122332332), we get a palindrome (355565553).

It can be divided in two parts, 2332 and 33221, that added together give a palindrome (35553).

The spelling of 233233221 in words is "two hundred thirty-three million, two hundred thirty-three thousand, two hundred twenty-one".