312022012 has 12 divisors (see below), whose sum is σ = 578158560. Its totient is φ = 146833856.

The previous prime is 312022003. The next prime is 312022033. The reversal of 312022012 is 210220213.

It is a junction number, because it is equal to n+sod(n) for n = 312021983 and 312022001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2294212 + ... + 2294347.

It is an arithmetic number, because the mean of its divisors is an integer number (48179880).

Almost surely, 2^312022012 is an apocalyptic number.

It is an amenable number.

312022012 is a deficient number, since it is larger than the sum of its proper divisors (266136548).

312022012 is a wasteful number, since it uses less digits than its factorization.

312022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4588580 (or 4588578 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 312022012 is about 17664.1448137180. The cubic root of 312022012 is about 678.2582385154.

Adding to 312022012 its reverse (210220213), we get a palindrome (522242225).

The spelling of 312022012 in words is "three hundred twelve million, twenty-two thousand, twelve".