212110046647 has 2 divisors, whose sum is σ = 212110046648. Its totient is φ = 212110046646.

The previous prime is 212110046641. The next prime is 212110046677. The reversal of 212110046647 is 746640011212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212110046647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212110046641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106055023323 + 106055023324.

It is an arithmetic number, because the mean of its divisors is an integer number (106055023324).

Almost surely, 2^212110046647 is an apocalyptic number.

212110046647 is a deficient number, since it is larger than the sum of its proper divisors (1).

212110046647 is an equidigital number, since it uses as much as digits as its factorization.

212110046647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

Adding to 212110046647 its reverse (746640011212), we get a palindrome (958750057859).

The spelling of 212110046647 in words is "two hundred twelve billion, one hundred ten million, forty-six thousand, six hundred forty-seven".