312213302220412 has 6 divisors (see below), whose sum is σ = 546373278885728. Its totient is φ = 156106651110204.

The previous prime is 312213302220371. The next prime is 312213302220497. The reversal of 312213302220412 is 214022203312213.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39026662777548 + ... + 39026662777555.

Almost surely, 2^{312213302220412} is an apocalyptic number.

It is an amenable number.

312213302220412 is a deficient number, since it is larger than the sum of its proper divisors (234159976665316).

312213302220412 is a wasteful number, since it uses less digits than its factorization.

312213302220412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78053325555107 (or 78053325555105 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 312213302220412 its reverse (214022203312213), we get a palindrome (526235505532625).

The spelling of 312213302220412 in words is "three hundred twelve trillion, two hundred thirteen billion, three hundred two million, two hundred twenty thousand, four hundred twelve".