12581022271 has 2 divisors, whose sum is σ = 12581022272. Its totient is φ = 12581022270.

The previous prime is 12581022269. The next prime is 12581022341. The reversal of 12581022271 is 17222018521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12581022271 - 2¹ = 12581022269 is a prime.

Together with 12581022269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12581022211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6290511135 + 6290511136.

It is an arithmetic number, because the mean of its divisors is an integer number (6290511136).

Almost surely, 2^12581022271 is an apocalyptic number.

12581022271 is a deficient number, since it is larger than the sum of its proper divisors (1).

12581022271 is an equidigital number, since it uses as much as digits as its factorization.

12581022271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 31.

The spelling of 12581022271 in words is "twelve billion, five hundred eighty-one million, twenty-two thousand, two hundred seventy-one".