2116812 has 12 divisors (see below), whose sum is σ = 4939256. Its totient is φ = 705600.

The previous prime is 2116811. The next prime is 2116813. The reversal of 2116812 is 2186112.

It is an interprime number because it is at equal distance from previous prime (2116811) and next prime (2116813).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2116811) 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, 88189 + ... + 88212.

2^2116812 is an apocalyptic number.

It is an amenable number.

2116812 is an abundant number, since it is smaller than the sum of its proper divisors (2822444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2116812 is a wasteful number, since it uses less digits than its factorization.

2116812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176408 (or 176406 counting only the distinct ones).

The product of its digits is 192, while the sum is 21.

The square root of 2116812 is about 1454.9268022825. The cubic root of 2116812 is about 128.3987402949.

It can be divided in two parts, 21168 and 12, that multiplied together give a square (254016 = 504²).

The spelling of 2116812 in words is "two million, one hundred sixteen thousand, eight hundred twelve".