312220303123212 has 36 divisors (see below), whose sum is σ = 860971138916616. Its totient is φ = 94612213067520.

The previous prime is 312220303123073. The next prime is 312220303123271. The reversal of 312220303123212 is 212321303022213.

312220303123212 is a `hidden beast` number, since 3 + 1 + 2 + 2 + 20 + 3 + 0 + 312 + 321 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 394217554053 + ... + 394217554844.

It is an arithmetic number, because the mean of its divisors is an integer number (23915864969906).

Almost surely, 2^{312220303123212} is an apocalyptic number.

It is an amenable number.

312220303123212 is an abundant number, since it is smaller than the sum of its proper divisors (548750835793404).

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

312220303123212 is a wasteful number, since it uses less digits than its factorization.

312220303123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788435108918 (or 788435108913 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 312220303123212 its reverse (212321303022213), we get a palindrome (524541606145425).

The spelling of 312220303123212 in words is "three hundred twelve trillion, two hundred twenty billion, three hundred three million, one hundred twenty-three thousand, two hundred twelve".