22242022171 has 2 divisors, whose sum is σ = 22242022172. Its totient is φ = 22242022170.

The previous prime is 22242022163. The next prime is 22242022213. The reversal of 22242022171 is 17122024222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22242022171 - 2³ = 22242022163 is a prime.

It is not a weakly prime, because it can be changed into another prime (22242022871) 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, 11121011085 + 11121011086.

It is an arithmetic number, because the mean of its divisors is an integer number (11121011086).

Almost surely, 2^22242022171 is an apocalyptic number.

22242022171 is a deficient number, since it is larger than the sum of its proper divisors (1).

22242022171 is an equidigital number, since it uses as much as digits as its factorization.

22242022171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 25.

Adding to 22242022171 its reverse (17122024222), we get a palindrome (39364046393).

The spelling of 22242022171 in words is "twenty-two billion, two hundred forty-two million, twenty-two thousand, one hundred seventy-one".