3016221 has 8 divisors (see below), whose sum is σ = 4331040. Its totient is φ = 1856112.

The previous prime is 3016219. The next prime is 3016229. The reversal of 3016221 is 1226103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3016221 - 2¹ = 3016219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3016221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3016229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38631 + ... + 38708.

It is an arithmetic number, because the mean of its divisors is an integer number (541380).

Almost surely, 2^3016221 is an apocalyptic number.

It is an amenable number.

3016221 is a deficient number, since it is larger than the sum of its proper divisors (1314819).

3016221 is a wasteful number, since it uses less digits than its factorization.

3016221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77355.

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

The square root of 3016221 is about 1736.7270942782. The cubic root of 3016221 is about 144.4844313794.

The spelling of 3016221 in words is "three million, sixteen thousand, two hundred twenty-one".