3222916681 has 4 divisors (see below), whose sum is σ = 3227108500. Its totient is φ = 3218724864.

The previous prime is 3222916679. The next prime is 3222916691. The reversal of 3222916681 is 1866192223.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 680740281 + 2542176400 = 26091^2 + 50420^2 .

It is a cyclic number.

It is not a de Polignac number, because 3222916681 - 2¹ = 3222916679 is a prime.

It is a super-2 number, since 2×3222916681² = 20774383865336111522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3222916601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2094756 + ... + 2096293.

It is an arithmetic number, because the mean of its divisors is an integer number (806777125).

Almost surely, 2^3222916681 is an apocalyptic number.

It is an amenable number.

3222916681 is a deficient number, since it is larger than the sum of its proper divisors (4191819).

3222916681 is an equidigital number, since it uses as much as digits as its factorization.

3222916681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4191818.

The product of its digits is 62208, while the sum is 40.

The square root of 3222916681 is about 56770.7378937424. The cubic root of 3222916681 is about 1477.1219759281.

The spelling of 3222916681 in words is "three billion, two hundred twenty-two million, nine hundred sixteen thousand, six hundred eighty-one".