212200111169 has 2 divisors, whose sum is σ = 212200111170. Its totient is φ = 212200111168.

The previous prime is 212200111141. The next prime is 212200111171. The reversal of 212200111169 is 961111002212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199507835569 + 12692275600 = 446663^2 + 112660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212200111169 is a prime.

It is a super-2 number, since 2×212200111169² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 212200111171, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (212200111129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106100055584 + 106100055585.

It is an arithmetic number, because the mean of its divisors is an integer number (106100055585).

Almost surely, 2^212200111169 is an apocalyptic number.

It is an amenable number.

212200111169 is a deficient number, since it is larger than the sum of its proper divisors (1).

212200111169 is an equidigital number, since it uses as much as digits as its factorization.

212200111169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 212200111169 in words is "two hundred twelve billion, two hundred million, one hundred eleven thousand, one hundred sixty-nine".