312021020120212 has 24 divisors (see below), whose sum is σ = 588234137008896. Its totient is φ = 143962063512288.

The previous prime is 312021020120197. The next prime is 312021020120219. The reversal of 312021020120212 is 212021020120213.

It is a self number, because there is not a number n which added to its sum of digits gives 312021020120212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312021020120219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992301328 + ... + 992615719.

It is an arithmetic number, because the mean of its divisors is an integer number (24509755708704).

Almost surely, 2^{312021020120212} is an apocalyptic number.

It is an amenable number.

312021020120212 is a deficient number, since it is larger than the sum of its proper divisors (276213116888684).

312021020120212 is a wasteful number, since it uses less digits than its factorization.

312021020120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984920087 (or 1984920085 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 312021020120212 its reverse (212021020120213), we get a palindrome (524042040240425).

Subtracting from 312021020120212 its reverse (212021020120213), we obtain a palindrome (99999999999999).

The spelling of 312021020120212 in words is "three hundred twelve trillion, twenty-one billion, twenty million, one hundred twenty thousand, two hundred twelve".