3221201001 has 16 divisors (see below), whose sum is σ = 4327442496. Its totient is φ = 2131274496.

The previous prime is 3221200999. The next prime is 3221201003. The reversal of 3221201001 is 1001021223.

It is an interprime number because it is at equal distance from previous prime (3221200999) and next prime (3221201003).

It is not a de Polignac number, because 3221201001 - 2¹ = 3221200999 is a prime.

It is a super-2 number, since 2×3221201001² = 20752271777686804002, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3221201003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211426 + ... + 226148.

It is an arithmetic number, because the mean of its divisors is an integer number (270465156).

Almost surely, 2^3221201001 is an apocalyptic number.

It is an amenable number.

3221201001 is a deficient number, since it is larger than the sum of its proper divisors (1106241495).

3221201001 is a wasteful number, since it uses less digits than its factorization.

3221201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15272.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 3221201001 is about 56755.6252806715. The cubic root of 3221201001 is about 1476.8598201738.

Adding to 3221201001 its reverse (1001021223), we get a palindrome (4222222224).

The spelling of 3221201001 in words is "three billion, two hundred twenty-one million, two hundred one thousand, one".