212340212142344 has 128 divisors (see below), whose sum is σ = 472299928289280. Its totient is φ = 88229883398400.

The previous prime is 212340212142299. The next prime is 212340212142397. The reversal of 212340212142344 is 443241212043212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46547489 + ... + 50905295.

It is an arithmetic number, because the mean of its divisors is an integer number (3689843189760).

Almost surely, 2^{212340212142344} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212340212142344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236149964144640).

212340212142344 is an abundant number, since it is smaller than the sum of its proper divisors (259959716146936).

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

212340212142344 is a wasteful number, since it uses less digits than its factorization.

212340212142344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4358251 (or 4358247 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 212340212142344 its reverse (443241212043212), we get a palindrome (655581424185556).

The spelling of 212340212142344 in words is "two hundred twelve trillion, three hundred forty billion, two hundred twelve million, one hundred forty-two thousand, three hundred forty-four".