212027279773 has 2 divisors, whose sum is σ = 212027279774. Its totient is φ = 212027279772.

The previous prime is 212027279771. The next prime is 212027279869. The reversal of 212027279773 is 377972720212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134510697049 + 77516582724 = 366757^2 + 278418^2 .

It is a cyclic number.

It is not a de Polignac number, because 212027279773 - 2¹ = 212027279771 is a prime.

Together with 212027279771, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212027279771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106013639886 + 106013639887.

It is an arithmetic number, because the mean of its divisors is an integer number (106013639887).

Almost surely, 2^212027279773 is an apocalyptic number.

It is an amenable number.

212027279773 is a deficient number, since it is larger than the sum of its proper divisors (1).

212027279773 is an equidigital number, since it uses as much as digits as its factorization.

212027279773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1037232, while the sum is 49.

Adding to 212027279773 its reverse (377972720212), we get a palindrome (589999999985).

The spelling of 212027279773 in words is "two hundred twelve billion, twenty-seven million, two hundred seventy-nine thousand, seven hundred seventy-three".