212140313243421 has 8 divisors (see below), whose sum is σ = 284918376911424. Its totient is φ = 140394562535520.

The previous prime is 212140313243401. The next prime is 212140313243489. The reversal of 212140313243421 is 124342313041212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212140313243421 - 2¹⁵ = 212140313210653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212140313243401) 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, 258078239545 + ... + 258078240366.

It is an arithmetic number, because the mean of its divisors is an integer number (35614797113928).

Almost surely, 2^{212140313243421} is an apocalyptic number.

It is an amenable number.

212140313243421 is a deficient number, since it is larger than the sum of its proper divisors (72778063668003).

212140313243421 is a wasteful number, since it uses less digits than its factorization.

212140313243421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516156480051.

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 212140313243421 its reverse (124342313041212), we get a palindrome (336482626284633).

The spelling of 212140313243421 in words is "two hundred twelve trillion, one hundred forty billion, three hundred thirteen million, two hundred forty-three thousand, four hundred twenty-one".