3222226661 has 2 divisors, whose sum is σ = 3222226662. Its totient is φ = 3222226660.

The previous prime is 3222226573. The next prime is 3222226669. The reversal of 3222226661 is 1666222223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2437890625 + 784336036 = 49375^2 + 28006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3222226661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3222226669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611113330 + 1611113331.

It is an arithmetic number, because the mean of its divisors is an integer number (1611113331).

Almost surely, 2^3222226661 is an apocalyptic number.

It is an amenable number.

3222226661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3222226661 is an equidigital number, since it uses as much as digits as its factorization.

3222226661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 32.

The square root of 3222226661 is about 56764.6603178421. The cubic root of 3222226661 is about 1477.0165521195.

Adding to 3222226661 its reverse (1666222223), we get a palindrome (4888448884).

The spelling of 3222226661 in words is "three billion, two hundred twenty-two million, two hundred twenty-six thousand, six hundred sixty-one".