2112171 has 8 divisors (see below), whose sum is σ = 2826384. Its totient is φ = 1403040.

The previous prime is 2112169. The next prime is 2112191. The reversal of 2112171 is 1712112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2112171 - 2¹ = 2112169 is a prime.

It is a super-2 number, since 2×2112171² = 8922532666482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2112171.

It is not an unprimeable number, because it can be changed into a prime (2112151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (353298).

2^2112171 is an apocalyptic number.

2112171 is a deficient number, since it is larger than the sum of its proper divisors (714213).

2112171 is a wasteful number, since it uses less digits than its factorization.

2112171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541.

The product of its digits is 28, while the sum is 15.

The square root of 2112171 is about 1453.3310015272. The cubic root of 2112171 is about 128.3048357855.

Adding to 2112171 its reverse (1712112), we get a palindrome (3824283).

The spelling of 2112171 in words is "two million, one hundred twelve thousand, one hundred seventy-one".