2171116 has 12 divisors (see below), whose sum is σ = 3922240. Its totient is φ = 1050480.

The previous prime is 2171107. The next prime is 2171119. The reversal of 2171116 is 6111712.

It is a junction number, because it is equal to n+sod(n) for n = 2171093 and 2171102.

It is not an unprimeable number, because it can be changed into a prime (2171119) 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, 8631 + ... + 8878.

2^2171116 is an apocalyptic number.

It is an amenable number.

2171116 is a deficient number, since it is larger than the sum of its proper divisors (1751124).

2171116 is a wasteful number, since it uses less digits than its factorization.

2171116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17544 (or 17542 counting only the distinct ones).

The product of its digits is 84, while the sum is 19.

The square root of 2171116 is about 1473.4707326581. The cubic root of 2171116 is about 129.4874492788.

Adding to 2171116 its reverse (6111712), we get a palindrome (8282828).

The spelling of 2171116 in words is "two million, one hundred seventy-one thousand, one hundred sixteen".