231230332221222 has 8 divisors (see below), whose sum is σ = 462460664442456. Its totient is φ = 77076777407072.

The previous prime is 231230332221199. The next prime is 231230332221227. The reversal of 231230332221222 is 222122233032132.

It is a happy number.

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

231230332221222 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 231230332221222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231230332221227) 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, 19269194351763 + ... + 19269194351774.

It is an arithmetic number, because the mean of its divisors is an integer number (57807583055307).

Almost surely, 2^{231230332221222} is an apocalyptic number.

231230332221222 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.

231230332221222 is a wasteful number, since it uses less digits than its factorization.

231230332221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38538388703542.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 231230332221222 its reverse (222122233032132), we get a palindrome (453352565253354).

The spelling of 231230332221222 in words is "two hundred thirty-one trillion, two hundred thirty billion, three hundred thirty-two million, two hundred twenty-one thousand, two hundred twenty-two".