233212231 has 8 divisors (see below), whose sum is σ = 267382304. Its totient is φ = 199255680.

The previous prime is 233212207. The next prime is 233212237. The reversal of 233212231 is 132212332.

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-233212231 is a prime.

It is a super-2 number, since 2×233212231² = 108775889375994722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 233212199 and 233212208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233212237) 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, 51030 + ... + 55411.

It is an arithmetic number, because the mean of its divisors is an integer number (33422788).

Almost surely, 2^233212231 is an apocalyptic number.

233212231 is a deficient number, since it is larger than the sum of its proper divisors (34170073).

233212231 is a wasteful number, since it uses less digits than its factorization.

233212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106761.

The product of its digits is 432, while the sum is 19.

The square root of 233212231 is about 15271.2877976941. The cubic root of 233212231 is about 615.5317242484.

Adding to 233212231 its reverse (132212332), we get a palindrome (365424563).

It can be divided in two parts, 23321 and 2231, that added together give a palindrome (25552).

The spelling of 233212231 in words is "two hundred thirty-three million, two hundred twelve thousand, two hundred thirty-one".