212211010169 has 2 divisors, whose sum is σ = 212211010170. Its totient is φ = 212211010168.

The previous prime is 212211010117. The next prime is 212211010213. The reversal of 212211010169 is 961010112212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212207635600 + 3374569 = 460660^2 + 1837^2 .

It is a cyclic number.

It is not a de Polignac number, because 212211010169 - 2²⁸ = 211942574713 is a prime.

It is a super-2 number, since 2×212211010169² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (212211018169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106105505084 + 106105505085.

It is an arithmetic number, because the mean of its divisors is an integer number (106105505085).

Almost surely, 2^212211010169 is an apocalyptic number.

It is an amenable number.

212211010169 is a deficient number, since it is larger than the sum of its proper divisors (1).

212211010169 is an equidigital number, since it uses as much as digits as its factorization.

212211010169 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 212211010169 in words is "two hundred twelve billion, two hundred eleven million, ten thousand, one hundred sixty-nine".