231230222 has 8 divisors (see below), whose sum is σ = 347196216. Its totient is φ = 115498152.

The previous prime is 231230213. The next prime is 231230267. The reversal of 231230222 is 222032132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 231230222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55988 + ... + 59975.

It is an arithmetic number, because the mean of its divisors is an integer number (43399527).

Almost surely, 2^231230222 is an apocalyptic number.

231230222 is a deficient number, since it is larger than the sum of its proper divisors (115965994).

231230222 is a wasteful number, since it uses less digits than its factorization.

231230222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116962.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 231230222 is about 15206.2560152064. The cubic root of 231230222 is about 613.7830138634.

Adding to 231230222 its reverse (222032132), we get a palindrome (453262354).

The spelling of 231230222 in words is "two hundred thirty-one million, two hundred thirty thousand, two hundred twenty-two".