8212321243071 has 24 divisors (see below), whose sum is σ = 12984793423056. Its totient is φ = 4960177463040.

The previous prime is 8212321243013. The next prime is 8212321243079. The reversal of 8212321243071 is 1703421232128.

8212321243071 is a `hidden beast` number, since 8 + 2 + 1 + 2 + 3 + 212 + 430 + 7 + 1 = 666.

It is not a de Polignac number, because 8212321243071 - 2¹¹ = 8212321241023 is a prime.

It is a super-2 number, since 2×8212321243071² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8212321243079) 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, 141528570 + ... + 141586583.

It is an arithmetic number, because the mean of its divisors is an integer number (541033059294).

Almost surely, 2^{8212321243071} is an apocalyptic number.

8212321243071 is a deficient number, since it is larger than the sum of its proper divisors (4772472179985).

8212321243071 is a wasteful number, since it uses less digits than its factorization.

8212321243071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283115463 (or 283115460 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

Adding to 8212321243071 its reverse (1703421232128), we get a palindrome (9915742475199).

The spelling of 8212321243071 in words is "eight trillion, two hundred twelve billion, three hundred twenty-one million, two hundred forty-three thousand, seventy-one".