3223011221 has 2 divisors, whose sum is σ = 3223011222. Its totient is φ = 3223011220.

The previous prime is 3223011217. The next prime is 3223011227. The reversal of 3223011221 is 1221103223.

3223011221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1858816996 + 1364194225 = 43114^2 + 36935^2 .

It is an emirp because it is prime and its reverse (1221103223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3223011221 - 2² = 3223011217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3223011221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3223011227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611505610 + 1611505611.

It is an arithmetic number, because the mean of its divisors is an integer number (1611505611).

Almost surely, 2^3223011221 is an apocalyptic number.

It is an amenable number.

3223011221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3223011221 is an equidigital number, since it uses as much as digits as its factorization.

3223011221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3223011221 is about 56771.5705349077. The cubic root of 3223011221 is about 1477.1364189270.

Adding to 3223011221 its reverse (1221103223), we get a palindrome (4444114444).

The spelling of 3223011221 in words is "three billion, two hundred twenty-three million, eleven thousand, two hundred twenty-one".