3120000221 has 8 divisors (see below), whose sum is σ = 3369160704. Its totient is φ = 2872148400.

The previous prime is 3120000179. The next prime is 3120000223. The reversal of 3120000221 is 1220000213.

It is a happy number.

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 3120000221 - 2²⁶ = 3052891357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120000223) 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, 322205 + ... + 331746.

It is an arithmetic number, because the mean of its divisors is an integer number (421145088).

Almost surely, 2^3120000221 is an apocalyptic number.

It is an amenable number.

3120000221 is a deficient number, since it is larger than the sum of its proper divisors (249160483).

3120000221 is a wasteful number, since it uses less digits than its factorization.

3120000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654331.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 3120000221 is about 55856.9621533431. The cubic root of 3120000221 is about 1461.2287493138.

Adding to 3120000221 its reverse (1220000213), we get a palindrome (4340000434).

The spelling of 3120000221 in words is "three billion, one hundred twenty million, two hundred twenty-one", and thus it is an aban number.