212112312110321 has 24 divisors (see below), whose sum is σ = 253573750160640. Its totient is φ = 176805807662400.

The previous prime is 212112312110299. The next prime is 212112312110329. The reversal of 212112312110321 is 123011213211212.

It is not a de Polignac number, because 212112312110321 - 2²⁶ = 212112245001457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212112312110329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169119641 + ... + 170369238.

It is an arithmetic number, because the mean of its divisors is an integer number (10565572923360).

Almost surely, 2^{212112312110321} is an apocalyptic number.

It is an amenable number.

212112312110321 is a deficient number, since it is larger than the sum of its proper divisors (41461438050319).

212112312110321 is a wasteful number, since it uses less digits than its factorization.

212112312110321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339489245 (or 339489238 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 212112312110321 its reverse (123011213211212), we get a palindrome (335123525321533).

The spelling of 212112312110321 in words is "two hundred twelve trillion, one hundred twelve billion, three hundred twelve million, one hundred ten thousand, three hundred twenty-one".