233213221333 has 4 divisors (see below), whose sum is σ = 233218713420. Its totient is φ = 233207729248.

The previous prime is 233213221303. The next prime is 233213221361. The reversal of 233213221333 is 333122312332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 229515730084 + 3697491249 = 479078^2 + 60807^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233213221333 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 (233213221303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2681848 + ... + 2767441.

It is an arithmetic number, because the mean of its divisors is an integer number (58304678355).

Almost surely, 2^233213221333 is an apocalyptic number.

It is an amenable number.

233213221333 is a deficient number, since it is larger than the sum of its proper divisors (5492087).

233213221333 is an equidigital number, since it uses as much as digits as its factorization.

233213221333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5492086.

The product of its digits is 11664, while the sum is 28.

Adding to 233213221333 its reverse (333122312332), we get a palindrome (566335533665).

Subtracting 233213221333 from its reverse (333122312332), we obtain a palindrome (99909090999).

The spelling of 233213221333 in words is "two hundred thirty-three billion, two hundred thirteen million, two hundred twenty-one thousand, three hundred thirty-three".