2221411321 has 2 divisors, whose sum is σ = 2221411322. Its totient is φ = 2221411320.

The previous prime is 2221411303. The next prime is 2221411327. The reversal of 2221411321 is 1231141222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1593207225 + 628204096 = 39915^2 + 25064^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221411321 - 2⁵ = 2221411289 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221411327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110705660 + 1110705661.

It is an arithmetic number, because the mean of its divisors is an integer number (1110705661).

Almost surely, 2^2221411321 is an apocalyptic number.

It is an amenable number.

2221411321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221411321 is an equidigital number, since it uses as much as digits as its factorization.

2221411321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 19.

The square root of 2221411321 is about 47131.8503880338. The cubic root of 2221411321 is about 1304.7971325310.

Adding to 2221411321 its reverse (1231141222), we get a palindrome (3452552543).

The spelling of 2221411321 in words is "two billion, two hundred twenty-one million, four hundred eleven thousand, three hundred twenty-one".