3221312001 has 4 divisors (see below), whose sum is σ = 4295082672. Its totient is φ = 2147541332.

The previous prime is 3221311999. The next prime is 3221312023. The reversal of 3221312001 is 1002131223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3221312001 - 2¹ = 3221311999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3221312051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536885331 + ... + 536885336.

It is an arithmetic number, because the mean of its divisors is an integer number (1073770668).

Almost surely, 2^3221312001 is an apocalyptic number.

It is an amenable number.

3221312001 is a deficient number, since it is larger than the sum of its proper divisors (1073770671).

3221312001 is a wasteful number, since it uses less digits than its factorization.

3221312001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073770670.

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

The square root of 3221312001 is about 56756.6031488848. The cubic root of 3221312001 is about 1476.8767837801.

Adding to 3221312001 its reverse (1002131223), we get a palindrome (4223443224).

The spelling of 3221312001 in words is "three billion, two hundred twenty-one million, three hundred twelve thousand, one".