2012216 has 8 divisors (see below), whose sum is σ = 3772920. Its totient is φ = 1006104.

The previous prime is 2012203. The next prime is 2012221. The reversal of 2012216 is 6122102.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2012216.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125756 + ... + 125771.

It is an arithmetic number, because the mean of its divisors is an integer number (471615).

2^2012216 is an apocalyptic number.

It is an amenable number.

2012216 is a deficient number, since it is larger than the sum of its proper divisors (1760704).

2012216 is a wasteful number, since it uses less digits than its factorization.

2012216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251533 (or 251529 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2012216 is about 1418.5259955320. The cubic root of 2012216 is about 126.2481044057.

Adding to 2012216 its reverse (6122102), we get a palindrome (8134318).

The spelling of 2012216 in words is "two million, twelve thousand, two hundred sixteen".