3222221213 has 4 divisors (see below), whose sum is σ = 3227427360. Its totient is φ = 3217015068.

The previous prime is 3222221207. The next prime is 3222221227. The reversal of 3222221213 is 3121222223.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3121222223 = 7 ⋅445888889.

It is a cyclic number.

It is not a de Polignac number, because 3222221213 - 2²² = 3218026909 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 (3222221243) 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, 2602145 + ... + 2603382.

It is an arithmetic number, because the mean of its divisors is an integer number (806856840).

Almost surely, 2^3222221213 is an apocalyptic number.

It is an amenable number.

3222221213 is a deficient number, since it is larger than the sum of its proper divisors (5206147).

3222221213 is an equidigital number, since it uses as much as digits as its factorization.

3222221213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5206146.

The product of its digits is 576, while the sum is 20.

The square root of 3222221213 is about 56764.6123302186. The cubic root of 3222221213 is about 1477.0157196940.

Adding to 3222221213 its reverse (3121222223), we get a palindrome (6343443436).

It can be divided in two parts, 32222 and 21213, that added together give a palindrome (53435).

The spelling of 3222221213 in words is "three billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred thirteen".