22171495273 has 2 divisors, whose sum is σ = 22171495274. Its totient is φ = 22171495272.

The previous prime is 22171495271. The next prime is 22171495279. The reversal of 22171495273 is 37259417122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21002675929 + 1168819344 = 144923^2 + 34188^2 .

It is a cyclic number.

It is not a de Polignac number, because 22171495273 - 2¹ = 22171495271 is a prime.

It is a super-2 number, since 2×22171495273² (a number of 21 digits) contains 22 as substring.

Together with 22171495271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22171495271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11085747636 + 11085747637.

It is an arithmetic number, because the mean of its divisors is an integer number (11085747637).

Almost surely, 2^22171495273 is an apocalyptic number.

It is an amenable number.

22171495273 is a deficient number, since it is larger than the sum of its proper divisors (1).

22171495273 is an equidigital number, since it uses as much as digits as its factorization.

22171495273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The spelling of 22171495273 in words is "twenty-two billion, one hundred seventy-one million, four hundred ninety-five thousand, two hundred seventy-three".