3001231221 has 8 divisors (see below), whose sum is σ = 4237032384. Its totient is φ = 1883125440.

The previous prime is 3001231213. The next prime is 3001231223. The reversal of 3001231221 is 1221321003.

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

It is not a de Polignac number, because 3001231221 - 2³ = 3001231213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3001231221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3001231223) 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, 29423785 + ... + 29423886.

It is an arithmetic number, because the mean of its divisors is an integer number (529629048).

Almost surely, 2^3001231221 is an apocalyptic number.

It is an amenable number.

3001231221 is a deficient number, since it is larger than the sum of its proper divisors (1235801163).

3001231221 is a wasteful number, since it uses less digits than its factorization.

3001231221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58847691.

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

The square root of 3001231221 is about 54783.4940561480. The cubic root of 3001231221 is about 1442.4468464285.

Adding to 3001231221 its reverse (1221321003), we get a palindrome (4222552224).

The spelling of 3001231221 in words is "three billion, one million, two hundred thirty-one thousand, two hundred twenty-one".