212302244261 has 2 divisors, whose sum is σ = 212302244262. Its totient is φ = 212302244260.

The previous prime is 212302244249. The next prime is 212302244263. The reversal of 212302244261 is 162442203212.

212302244261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167878672900 + 44423571361 = 409730^2 + 210769^2 .

It is a cyclic number.

It is not a de Polignac number, because 212302244261 - 2¹⁴ = 212302227877 is a prime.

It is a super-2 number, since 2×212302244261² (a number of 23 digits) contains 22 as substring.

Together with 212302244263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212302244263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106151122130 + 106151122131.

It is an arithmetic number, because the mean of its divisors is an integer number (106151122131).

Almost surely, 2^212302244261 is an apocalyptic number.

It is an amenable number.

212302244261 is a deficient number, since it is larger than the sum of its proper divisors (1).

212302244261 is an equidigital number, since it uses as much as digits as its factorization.

212302244261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 212302244261 its reverse (162442203212), we get a palindrome (374744447473).

The spelling of 212302244261 in words is "two hundred twelve billion, three hundred two million, two hundred forty-four thousand, two hundred sixty-one".