3221288161 has 32 divisors (see below), whose sum is σ = 4183764480. Its totient is φ = 2410366464.

The previous prime is 3221288149. The next prime is 3221288201. The reversal of 3221288161 is 1618821223.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3221288161 - 2⁷ = 3221288033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3221288131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177631 + ... + 194923.

It is an arithmetic number, because the mean of its divisors is an integer number (130742640).

Almost surely, 2^3221288161 is an apocalyptic number.

It is an amenable number.

3221288161 is a deficient number, since it is larger than the sum of its proper divisors (962476319).

3221288161 is a wasteful number, since it uses less digits than its factorization.

3221288161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17425.

The product of its digits is 9216, while the sum is 34.

The square root of 3221288161 is about 56756.3931288802. The cubic root of 3221288161 is about 1476.8731404583.

The spelling of 3221288161 in words is "three billion, two hundred twenty-one million, two hundred eighty-eight thousand, one hundred sixty-one".