211210212102077 has 2 divisors, whose sum is σ = 211210212102078. Its totient is φ = 211210212102076.

The previous prime is 211210212101971. The next prime is 211210212102121. The reversal of 211210212102077 is 770201212012112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130017029055001 + 81193183047076 = 11402501^2 + 9010726^2 .

It is a cyclic number.

It is not a de Polignac number, because 211210212102077 - 2⁸ = 211210212101821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211210212182077) 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, 105605106051038 + 105605106051039.

It is an arithmetic number, because the mean of its divisors is an integer number (105605106051039).

Almost surely, 2^{211210212102077} is an apocalyptic number.

It is an amenable number.

211210212102077 is a deficient number, since it is larger than the sum of its proper divisors (1).

211210212102077 is an equidigital number, since it uses as much as digits as its factorization.

211210212102077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 29.

Adding to 211210212102077 its reverse (770201212012112), we get a palindrome (981411424114189).

The spelling of 211210212102077 in words is "two hundred eleven trillion, two hundred ten billion, two hundred twelve million, one hundred two thousand, seventy-seven".