3221001001 has 4 divisors (see below), whose sum is σ = 3238995600. Its totient is φ = 3203006404.

The previous prime is 3221000969. The next prime is 3221001013. The reversal of 3221001001 is 1001001223.

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 3221001001 - 2⁵ = 3221000969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3221001031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8997031 + ... + 8997388.

It is an arithmetic number, because the mean of its divisors is an integer number (809748900).

Almost surely, 2^3221001001 is an apocalyptic number.

It is an amenable number.

3221001001 is a deficient number, since it is larger than the sum of its proper divisors (17994599).

3221001001 is a wasteful number, since it uses less digits than its factorization.

3221001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17994598.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 3221001001 is about 56753.8633134344. The cubic root of 3221001001 is about 1476.8292541337.

Adding to 3221001001 its reverse (1001001223), we get a palindrome (4222002224).

The spelling of 3221001001 in words is "three billion, two hundred twenty-one million, one thousand, one".