2201022171 has 6 divisors (see below), whose sum is σ = 3179254260. Its totient is φ = 1467348108.

The previous prime is 2201022169. The next prime is 2201022203. The reversal of 2201022171 is 1712201022.

It is a happy number.

It is not a de Polignac number, because 2201022171 - 2¹ = 2201022169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2201012171) 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 in 5 ways as a sum of consecutive naturals, for example, 122279001 + ... + 122279018.

It is an arithmetic number, because the mean of its divisors is an integer number (529875710).

Almost surely, 2^2201022171 is an apocalyptic number.

2201022171 is a deficient number, since it is larger than the sum of its proper divisors (978232089).

2201022171 is a wasteful number, since it uses less digits than its factorization.

2201022171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244558025 (or 244558022 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 2201022171 is about 46915.0527123225. The cubic root of 2201022171 is about 1300.7928439754.

Adding to 2201022171 its reverse (1712201022), we get a palindrome (3913223193).

The spelling of 2201022171 in words is "two billion, two hundred one million, twenty-two thousand, one hundred seventy-one".