233221132 has 12 divisors (see below), whose sum is σ = 422210880. Its totient is φ = 112589456.

The previous prime is 233221033. The next prime is 233221133. The reversal of 233221132 is 231122332.

233221132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×233221132² = 108784192822722848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (233221133) 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, 1005148 + ... + 1005379.

It is an arithmetic number, because the mean of its divisors is an integer number (35184240).

Almost surely, 2^233221132 is an apocalyptic number.

It is an amenable number.

233221132 is a deficient number, since it is larger than the sum of its proper divisors (188989748).

233221132 is a wasteful number, since it uses less digits than its factorization.

233221132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010560 (or 2010558 counting only the distinct ones).

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

The square root of 233221132 is about 15271.5792241667. The cubic root of 233221132 is about 615.5395551387.

Adding to 233221132 its reverse (231122332), we get a palindrome (464343464).

The spelling of 233221132 in words is "two hundred thirty-three million, two hundred twenty-one thousand, one hundred thirty-two".