111331230212 has 12 divisors (see below), whose sum is σ = 196070607180. Its totient is φ = 55311056736.

The previous prime is 111331230203. The next prime is 111331230221. The reversal of 111331230212 is 212032133111.

It is a happy number.

111331230212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (111331230203) and next prime (111331230221).

It can be written as a sum of positive squares in 2 ways, for example, as 80983499776 + 30347730436 = 284576^2 + 174206^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88638887 + ... + 88640142.

It is an arithmetic number, because the mean of its divisors is an integer number (16339217265).

Almost surely, 2^111331230212 is an apocalyptic number.

It is an amenable number.

111331230212 is a deficient number, since it is larger than the sum of its proper divisors (84739376968).

111331230212 is a wasteful number, since it uses less digits than its factorization.

111331230212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177279190 (or 177279188 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111331230212 its reverse (212032133111), we get a palindrome (323363363323).

The spelling of 111331230212 in words is "one hundred eleven billion, three hundred thirty-one million, two hundred thirty thousand, two hundred twelve".