3213220201 has 24 divisors (see below), whose sum is σ = 3502179864. Its totient is φ = 2946478080.

The previous prime is 3213220187. The next prime is 3213220211. The reversal of 3213220201 is 1020223123.

It can be written as a sum of positive squares in 12 ways, for example, as 1215219600 + 1998000601 = 34860^2 + 44699^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3213220201 is a prime.

It is a super-2 number, since 2×3213220201² = 20649568120228960802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3213220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1991271 + ... + 1992883.

It is an arithmetic number, because the mean of its divisors is an integer number (145924161).

Almost surely, 2^3213220201 is an apocalyptic number.

It is an amenable number.

3213220201 is a deficient number, since it is larger than the sum of its proper divisors (288959663).

3213220201 is a wasteful number, since it uses less digits than its factorization.

3213220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821 (or 1804 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3213220201 is about 56685.2732285909. The cubic root of 3213220201 is about 1475.6391294741.

Adding to 3213220201 its reverse (1020223123), we get a palindrome (4233443324).

The spelling of 3213220201 in words is "three billion, two hundred thirteen million, two hundred twenty thousand, two hundred one".