2171012 has 12 divisors (see below), whose sum is σ = 3902220. Its totient is φ = 1056096.

The previous prime is 2171011. The next prime is 2171017. The reversal of 2171012 is 2101712.

It can be written as a sum of positive squares in 2 ways, for example, as 1700416 + 470596 = 1304^2 + 686^2 .

It is not an unprimeable number, because it can be changed into a prime (2171011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7187 + ... + 7482.

It is an arithmetic number, because the mean of its divisors is an integer number (325185).

2^2171012 is an apocalyptic number.

It is an amenable number.

2171012 is a deficient number, since it is larger than the sum of its proper divisors (1731208).

2171012 is a wasteful number, since it uses less digits than its factorization.

2171012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14710 (or 14708 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 2171012 is about 1473.4354414090. The cubic root of 2171012 is about 129.4853816924.

Adding to 2171012 its reverse (2101712), we get a palindrome (4272724).

The spelling of 2171012 in words is "two million, one hundred seventy-one thousand, twelve".