2331223217 has 2 divisors, whose sum is σ = 2331223218. Its totient is φ = 2331223216.

The previous prime is 2331223211. The next prime is 2331223249. The reversal of 2331223217 is 7123221332.

It is a happy number.

2331223217 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., 1767445681 + 563777536 = 42041^2 + 23744^2 .

It is a cyclic number.

It is not a de Polignac number, because 2331223217 - 2⁴ = 2331223201 is a prime.

It is not a weakly prime, because it can be changed into another prime (2331223211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1165611608 + 1165611609.

It is an arithmetic number, because the mean of its divisors is an integer number (1165611609).

Almost surely, 2^2331223217 is an apocalyptic number.

It is an amenable number.

2331223217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2331223217 is an equidigital number, since it uses as much as digits as its factorization.

2331223217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 26.

The square root of 2331223217 is about 48282.7424345387. The cubic root of 2331223217 is about 1325.9524594943.

Adding to 2331223217 its reverse (7123221332), we get a palindrome (9454444549).

The spelling of 2331223217 in words is "two billion, three hundred thirty-one million, two hundred twenty-three thousand, two hundred seventeen".