312330222012 has 96 divisors (see below), whose sum is σ = 762764212224. Its totient is φ = 99354931200.

The previous prime is 312330221971. The next prime is 312330222019. The reversal of 312330222012 is 210222033213.

It is a happy number.

312330222012 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 312330222012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312330222019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10124203 + ... + 10155005.

It is an arithmetic number, because the mean of its divisors is an integer number (7945460544).

Almost surely, 2^312330222012 is an apocalyptic number.

It is an amenable number.

312330222012 is an abundant number, since it is smaller than the sum of its proper divisors (450433990212).

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

312330222012 is a wasteful number, since it uses less digits than its factorization.

312330222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31219 (or 31217 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 312330222012 its reverse (210222033213), we get a palindrome (522552255225).

The spelling of 312330222012 in words is "three hundred twelve billion, three hundred thirty million, two hundred twenty-two thousand, twelve".