312224420012 has 6 divisors (see below), whose sum is σ = 546392735028. Its totient is φ = 156112210004.

The previous prime is 312224420003. The next prime is 312224420021. The reversal of 312224420012 is 210024422213.

It is an interprime number because it is at equal distance from previous prime (312224420003) and next prime (312224420021).

It is a self number, because there is not a number n which added to its sum of digits gives 312224420012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39028052498 + ... + 39028052505.

It is an arithmetic number, because the mean of its divisors is an integer number (91065455838).

Almost surely, 2^312224420012 is an apocalyptic number.

It is an amenable number.

312224420012 is a deficient number, since it is larger than the sum of its proper divisors (234168315016).

312224420012 is a wasteful number, since it uses less digits than its factorization.

312224420012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78056105007 (or 78056105005 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 312224420012 its reverse (210024422213), we get a palindrome (522248842225).

The spelling of 312224420012 in words is "three hundred twelve billion, two hundred twenty-four million, four hundred twenty thousand, twelve".