231222232212 has 24 divisors (see below), whose sum is σ = 539544748512. Its totient is φ = 77070333600.

The previous prime is 231222232139. The next prime is 231222232229. The reversal of 231222232212 is 212232222132.

231222232212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204714 + ... + 710177.

It is an arithmetic number, because the mean of its divisors is an integer number (22481031188).

Almost surely, 2^231222232212 is an apocalyptic number.

It is an amenable number.

231222232212 is an abundant number, since it is smaller than the sum of its proper divisors (308322516300).

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

231222232212 is a wasteful number, since it uses less digits than its factorization.

231222232212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935959 (or 935957 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

Adding to 231222232212 its reverse (212232222132), we get a palindrome (443454454344).

The spelling of 231222232212 in words is "two hundred thirty-one billion, two hundred twenty-two million, two hundred thirty-two thousand, two hundred twelve".