22108587971 has 2 divisors, whose sum is σ = 22108587972. Its totient is φ = 22108587970.

The previous prime is 22108587961. The next prime is 22108588003. The reversal of 22108587971 is 17978580122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22108587971 - 2¹⁰ = 22108586947 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (22108587961) 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, 11054293985 + 11054293986.

It is an arithmetic number, because the mean of its divisors is an integer number (11054293986).

Almost surely, 2^22108587971 is an apocalyptic number.

22108587971 is a deficient number, since it is larger than the sum of its proper divisors (1).

22108587971 is an equidigital number, since it uses as much as digits as its factorization.

22108587971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 50.

The spelling of 22108587971 in words is "twenty-two billion, one hundred eight million, five hundred eighty-seven thousand, nine hundred seventy-one".