233222231 has 16 divisors (see below), whose sum is σ = 268144128. Its totient is φ = 200772000.

The previous prime is 233222203. The next prime is 233222233. The reversal of 233222231 is 132222332.

It is a de Polignac number, because none of the positive numbers 2^k-233222231 is a prime.

It is a super-2 number, since 2×233222231² = 108785218065234722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233222233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20990 + ... + 30116.

It is an arithmetic number, because the mean of its divisors is an integer number (16759008).

Almost surely, 2^233222231 is an apocalyptic number.

233222231 is a deficient number, since it is larger than the sum of its proper divisors (34921897).

233222231 is a wasteful number, since it uses less digits than its factorization.

233222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9262.

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

The square root of 233222231 is about 15271.6152059957. The cubic root of 233222231 is about 615.5405219992.

Adding to 233222231 its reverse (132222332), we get a palindrome (365444563).

It can be divided in two parts, 2 and 33222231, that added together give a palindrome (33222233).

The spelling of 233222231 in words is "two hundred thirty-three million, two hundred twenty-two thousand, two hundred thirty-one".