3072221 has 8 divisors (see below), whose sum is σ = 3230304. Its totient is φ = 2918160.

The previous prime is 3072211. The next prime is 3072227. The reversal of 3072221 is 1222703.

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

It is a cyclic number.

It is not a de Polignac number, because 3072221 - 2¹⁰ = 3071197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3072221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3072227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626 + ... + 2556.

It is an arithmetic number, because the mean of its divisors is an integer number (403788).

Almost surely, 2^3072221 is an apocalyptic number.

It is an amenable number.

3072221 is a deficient number, since it is larger than the sum of its proper divisors (158083).

3072221 is a wasteful number, since it uses less digits than its factorization.

3072221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 3072221 is about 1752.7752280312. The cubic root of 3072221 is about 145.3731333122.

Adding to 3072221 its reverse (1222703), we get a palindrome (4294924).

The spelling of 3072221 in words is "three million, seventy-two thousand, two hundred twenty-one".