2271434234521 has 2 divisors, whose sum is σ = 2271434234522. Its totient is φ = 2271434234520.

The previous prime is 2271434234519. The next prime is 2271434234527. The reversal of 2271434234521 is 1254324341722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1775063259225 + 496370975296 = 1332315^2 + 704536^2 .

It is a cyclic number.

It is not a de Polignac number, because 2271434234521 - 2¹ = 2271434234519 is a prime.

Together with 2271434234519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2271434234527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1135717117260 + 1135717117261.

It is an arithmetic number, because the mean of its divisors is an integer number (1135717117261).

Almost surely, 2^{2271434234521} is an apocalyptic number.

It is an amenable number.

2271434234521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2271434234521 is an equidigital number, since it uses as much as digits as its factorization.

2271434234521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 40.

The spelling of 2271434234521 in words is "two trillion, two hundred seventy-one billion, four hundred thirty-four million, two hundred thirty-four thousand, five hundred twenty-one".