233322221 has 8 divisors (see below), whose sum is σ = 257054688. Its totient is φ = 210010000.

The previous prime is 233322217. The next prime is 233322247. The reversal of 233322221 is 122223332.

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 233322221 - 2² = 233322217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 233322193 and 233322202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233322211) 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, 103895 + ... + 106116.

It is an arithmetic number, because the mean of its divisors is an integer number (32131836).

Almost surely, 2^233322221 is an apocalyptic number.

It is an amenable number.

233322221 is a deficient number, since it is larger than the sum of its proper divisors (23732467).

233322221 is a wasteful number, since it uses less digits than its factorization.

233322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210123.

The product of its digits is 864, while the sum is 20.

The square root of 233322221 is about 15274.8885756984. Note that the first 3 decimals coincide. The cubic root of 233322221 is about 615.6284768835.

Adding to 233322221 its reverse (122223332), we get a palindrome (355545553).

The spelling of 233322221 in words is "two hundred thirty-three million, three hundred twenty-two thousand, two hundred twenty-one".