231222352 has 20 divisors (see below), whose sum is σ = 458413120. Its totient is φ = 112922208.

The previous prime is 231222347. The next prime is 231222359. The reversal of 231222352 is 253222132.

231222352 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231222359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167352 + ... + 168727.

It is an arithmetic number, because the mean of its divisors is an integer number (22920656).

Almost surely, 2^231222352 is an apocalyptic number.

It is an amenable number.

231222352 is a deficient number, since it is larger than the sum of its proper divisors (227190768).

231222352 is a wasteful number, since it uses less digits than its factorization.

231222352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336130 (or 336124 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 231222352 is about 15205.9972379321. The cubic root of 231222352 is about 613.7760503459.

Adding to 231222352 its reverse (253222132), we get a palindrome (484444484).

The spelling of 231222352 in words is "two hundred thirty-one million, two hundred twenty-two thousand, three hundred fifty-two".