3001312221 has 8 divisors (see below), whose sum is σ = 4010993280. Its totient is φ = 1996252992.

The previous prime is 3001312199. The next prime is 3001312231. The reversal of 3001312221 is 1222131003.

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

It is not a de Polignac number, because 3001312221 - 2⁵ = 3001312189 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3001312221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3001312231) 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, 1153941 + ... + 1156538.

It is an arithmetic number, because the mean of its divisors is an integer number (501374160).

Almost surely, 2^3001312221 is an apocalyptic number.

It is an amenable number.

3001312221 is a deficient number, since it is larger than the sum of its proper divisors (1009681059).

3001312221 is a wasteful number, since it uses less digits than its factorization.

3001312221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310915.

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

The square root of 3001312221 is about 54784.2333249266. The cubic root of 3001312221 is about 1442.4598230077.

Adding to 3001312221 its reverse (1222131003), we get a palindrome (4223443224).

The spelling of 3001312221 in words is "three billion, one million, three hundred twelve thousand, two hundred twenty-one".