22131097871 has 2 divisors, whose sum is σ = 22131097872. Its totient is φ = 22131097870.

The previous prime is 22131097861. The next prime is 22131097889. The reversal of 22131097871 is 17879013122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22131097871 - 2¹⁴ = 22131081487 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22131097861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11065548935 + 11065548936.

It is an arithmetic number, because the mean of its divisors is an integer number (11065548936).

Almost surely, 2^22131097871 is an apocalyptic number.

22131097871 is a deficient number, since it is larger than the sum of its proper divisors (1).

22131097871 is an equidigital number, since it uses as much as digits as its factorization.

22131097871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 41.

The spelling of 22131097871 in words is "twenty-two billion, one hundred thirty-one million, ninety-seven thousand, eight hundred seventy-one".