3222311221 has 4 divisors (see below), whose sum is σ = 3223893600. Its totient is φ = 3220728844.

The previous prime is 3222311219. The next prime is 3222311227. The reversal of 3222311221 is 1221132223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3222311221 - 2¹ = 3222311219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3222311227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788131 + ... + 792208.

It is an arithmetic number, because the mean of its divisors is an integer number (805973400).

Almost surely, 2^3222311221 is an apocalyptic number.

It is an amenable number.

3222311221 is a deficient number, since it is larger than the sum of its proper divisors (1582379).

3222311221 is a wasteful number, since it uses less digits than its factorization.

3222311221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582378.

The product of its digits is 288, while the sum is 19.

The square root of 3222311221 is about 56765.4051425690. The cubic root of 3222311221 is about 1477.0294723183.

Adding to 3222311221 its reverse (1221132223), we get a palindrome (4443443444).

The spelling of 3222311221 in words is "three billion, two hundred twenty-two million, three hundred eleven thousand, two hundred twenty-one".