231030222 has 8 divisors (see below), whose sum is σ = 462060456. Its totient is φ = 77010072.

The previous prime is 231030209. The next prime is 231030281. The reversal of 231030222 is 222030132.

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

231030222 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19252513 + ... + 19252524.

It is an arithmetic number, because the mean of its divisors is an integer number (57757557).

Almost surely, 2^231030222 is an apocalyptic number.

231030222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231030222 is a wasteful number, since it uses less digits than its factorization.

231030222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38505042.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 231030222 is about 15199.6783518599. The cubic root of 231030222 is about 613.6060012292.

Adding to 231030222 its reverse (222030132), we get a palindrome (453060354).

The spelling of 231030222 in words is "two hundred thirty-one million, thirty thousand, two hundred twenty-two".