2212315517 has 2 divisors, whose sum is σ = 2212315518. Its totient is φ = 2212315516.

The previous prime is 2212315499. The next prime is 2212315531. The reversal of 2212315517 is 7155132122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2169137476 + 43178041 = 46574^2 + 6571^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212315517 - 2¹⁰ = 2212314493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2212315517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212315577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106157758 + 1106157759.

It is an arithmetic number, because the mean of its divisors is an integer number (1106157759).

Almost surely, 2^2212315517 is an apocalyptic number.

It is an amenable number.

2212315517 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212315517 is an equidigital number, since it uses as much as digits as its factorization.

2212315517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 29.

The square root of 2212315517 is about 47035.2582325217. The cubic root of 2212315517 is about 1303.0138196255.

Adding to 2212315517 its reverse (7155132122), we get a palindrome (9367447639).

The spelling of 2212315517 in words is "two billion, two hundred twelve million, three hundred fifteen thousand, five hundred seventeen".