22161347171 has 2 divisors, whose sum is σ = 22161347172. Its totient is φ = 22161347170.

The previous prime is 22161347147. The next prime is 22161347213. The reversal of 22161347171 is 17174316122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22161347171 - 2³⁰ = 21087605347 is a prime.

It is a super-2 number, since 2×22161347171² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22161347671) 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, 11080673585 + 11080673586.

It is an arithmetic number, because the mean of its divisors is an integer number (11080673586).

Almost surely, 2^22161347171 is an apocalyptic number.

22161347171 is a deficient number, since it is larger than the sum of its proper divisors (1).

22161347171 is an equidigital number, since it uses as much as digits as its factorization.

22161347171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 35.

The spelling of 22161347171 in words is "twenty-two billion, one hundred sixty-one million, three hundred forty-seven thousand, one hundred seventy-one".