2122131171 has 4 divisors (see below), whose sum is σ = 2829508232. Its totient is φ = 1414754112.

The previous prime is 2122131157. The next prime is 2122131191. The reversal of 2122131171 is 1711312212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2122131171 - 2⁵ = 2122131139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122131191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353688526 + ... + 353688531.

It is an arithmetic number, because the mean of its divisors is an integer number (707377058).

Almost surely, 2^2122131171 is an apocalyptic number.

2122131171 is a deficient number, since it is larger than the sum of its proper divisors (707377061).

2122131171 is an equidigital number, since it uses as much as digits as its factorization.

2122131171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707377060.

The product of its digits is 168, while the sum is 21.

The square root of 2122131171 is about 46066.5949577348. The cubic root of 2122131171 is about 1285.0619804873.

Adding to 2122131171 its reverse (1711312212), we get a palindrome (3833443383).

The spelling of 2122131171 in words is "two billion, one hundred twenty-two million, one hundred thirty-one thousand, one hundred seventy-one".