231110112212 has 12 divisors (see below), whose sum is σ = 462220224480. Its totient is φ = 99047190936.

The previous prime is 231110112193. The next prime is 231110112217. The reversal of 231110112212 is 212211011132.

It is a happy number.

231110112212 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231110112217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4126966262 + ... + 4126966317.

It is an arithmetic number, because the mean of its divisors is an integer number (38518352040).

Almost surely, 2^231110112212 is an apocalyptic number.

It is an amenable number.

231110112212 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.

231110112212 is a wasteful number, since it uses less digits than its factorization.

231110112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8253932590 (or 8253932588 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 231110112212 its reverse (212211011132), we get a palindrome (443321123344).

The spelling of 231110112212 in words is "two hundred thirty-one billion, one hundred ten million, one hundred twelve thousand, two hundred twelve".