212412163 has 2 divisors, whose sum is σ = 212412164. Its totient is φ = 212412162.

The previous prime is 212412149. The next prime is 212412173. The reversal of 212412163 is 361214212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212412163 is a prime.

It is not a weakly prime, because it can be changed into another prime (212412173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106206081 + 106206082.

It is an arithmetic number, because the mean of its divisors is an integer number (106206082).

Almost surely, 2^212412163 is an apocalyptic number.

212412163 is a deficient number, since it is larger than the sum of its proper divisors (1).

212412163 is an equidigital number, since it uses as much as digits as its factorization.

212412163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 22.

The square root of 212412163 is about 14574.3666414702. The cubic root of 212412163 is about 596.6593634691.

Adding to 212412163 its reverse (361214212), we get a palindrome (573626375).

The spelling of 212412163 in words is "two hundred twelve million, four hundred twelve thousand, one hundred sixty-three".