212264563289 has 2 divisors, whose sum is σ = 212264563290. Its totient is φ = 212264563288.

The previous prime is 212264563283. The next prime is 212264563297. The reversal of 212264563289 is 982365462212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194339905600 + 17924657689 = 440840^2 + 133883^2 .

It is a cyclic number.

It is not a de Polignac number, because 212264563289 - 2²⁴ = 212247786073 is a prime.

It is not a weakly prime, because it can be changed into another prime (212264563283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106132281644 + 106132281645.

It is an arithmetic number, because the mean of its divisors is an integer number (106132281645).

Almost surely, 2^212264563289 is an apocalyptic number.

It is an amenable number.

212264563289 is a deficient number, since it is larger than the sum of its proper divisors (1).

212264563289 is an equidigital number, since it uses as much as digits as its factorization.

212264563289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2488320, while the sum is 50.

The spelling of 212264563289 in words is "two hundred twelve billion, two hundred sixty-four million, five hundred sixty-three thousand, two hundred eighty-nine".