20122201171 has 2 divisors, whose sum is σ = 20122201172. Its totient is φ = 20122201170.

The previous prime is 20122201157. The next prime is 20122201247. The reversal of 20122201171 is 17110222102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20122201171 - 2²⁷ = 19987983443 is a prime.

It is not a weakly prime, because it can be changed into another prime (20122201571) 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, 10061100585 + 10061100586.

It is an arithmetic number, because the mean of its divisors is an integer number (10061100586).

Almost surely, 2^20122201171 is an apocalyptic number.

20122201171 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122201171 is an equidigital number, since it uses as much as digits as its factorization.

20122201171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 20122201171 its reverse (17110222102), we get a palindrome (37232423273).

The spelling of 20122201171 in words is "twenty billion, one hundred twenty-two million, two hundred one thousand, one hundred seventy-one".