3120030221 has 32 divisors (see below), whose sum is σ = 4032737280. Its totient is φ = 2342289600.

The previous prime is 3120030211. The next prime is 3120030229. The reversal of 3120030221 is 1220300213.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-3120030221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3120030196 and 3120030205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120030229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1273820 + ... + 1276266.

It is an arithmetic number, because the mean of its divisors is an integer number (126023040).

Almost surely, 2^3120030221 is an apocalyptic number.

It is an amenable number.

3120030221 is a deficient number, since it is larger than the sum of its proper divisors (912707059).

3120030221 is a wasteful number, since it uses less digits than its factorization.

3120030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3120030221 is about 55857.2306957658. The cubic root of 3120030221 is about 1461.2334327239.

Adding to 3120030221 its reverse (1220300213), we get a palindrome (4340330434).

The spelling of 3120030221 in words is "three billion, one hundred twenty million, thirty thousand, two hundred twenty-one".