3012216 has 16 divisors (see below), whose sum is σ = 7530600. Its totient is φ = 1004064.

The previous prime is 3012211. The next prime is 3012221. The reversal of 3012216 is 6122103.

It is an interprime number because it is at equal distance from previous prime (3012211) and next prime (3012221).

It is a junction number, because it is equal to n+sod(n) for n = 3012195 and 3012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3012211) 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, 62731 + ... + 62778.

Almost surely, 2^3012216 is an apocalyptic number.

It is an amenable number.

3012216 is an abundant number, since it is smaller than the sum of its proper divisors (4518384).

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

3012216 is a wasteful number, since it uses less digits than its factorization.

3012216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125518 (or 125514 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3012216 is about 1735.5736803720. The cubic root of 3012216 is about 144.4204532585.

Adding to 3012216 its reverse (6122103), we get a palindrome (9134319).

It can be divided in two parts, 30 and 12216, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 3012216 in words is "three million, twelve thousand, two hundred sixteen".