212140240344212 has 24 divisors (see below), whose sum is σ = 375945886229760. Its totient is φ = 104727138253920.

The previous prime is 212140240344203. The next prime is 212140240344223. The reversal of 212140240344212 is 212443042041212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126886262 + ... + 128547282.

It is an arithmetic number, because the mean of its divisors is an integer number (15664411926240).

Almost surely, 2^{212140240344212} is an apocalyptic number.

It is an amenable number.

212140240344212 is a deficient number, since it is larger than the sum of its proper divisors (163805645885548).

212140240344212 is a wasteful number, since it uses less digits than its factorization.

212140240344212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065271 (or 2065269 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 212140240344212 its reverse (212443042041212), we get a palindrome (424583282385424).

The spelling of 212140240344212 in words is "two hundred twelve trillion, one hundred forty billion, two hundred forty million, three hundred forty-four thousand, two hundred twelve".