21331322010071 has 2 divisors, whose sum is σ = 21331322010072. Its totient is φ = 21331322010070.

The previous prime is 21331322010049. The next prime is 21331322010073. The reversal of 21331322010071 is 17001022313312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21331322010071 - 2¹⁴ = 21331321993687 is a prime.

Together with 21331322010073, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21331322010071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21331322010073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10665661005035 + 10665661005036.

It is an arithmetic number, because the mean of its divisors is an integer number (10665661005036).

Almost surely, 2^{21331322010071} is an apocalyptic number.

21331322010071 is a deficient number, since it is larger than the sum of its proper divisors (1).

21331322010071 is an equidigital number, since it uses as much as digits as its factorization.

21331322010071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

Adding to 21331322010071 its reverse (17001022313312), we get a palindrome (38332344323383).

The spelling of 21331322010071 in words is "twenty-one trillion, three hundred thirty-one billion, three hundred twenty-two million, ten thousand, seventy-one".