10212212161 has 2 divisors, whose sum is σ = 10212212162. Its totient is φ = 10212212160.

The previous prime is 10212212099. The next prime is 10212212191. The reversal of 10212212161 is 16121221201.

10212212161 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., 6169159936 + 4043052225 = 78544^2 + 63585^2 .

It is an emirp because it is prime and its reverse (16121221201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10212212161 - 2⁷ = 10212212033 is a prime.

It is not a weakly prime, because it can be changed into another prime (10212212191) 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, 5106106080 + 5106106081.

It is an arithmetic number, because the mean of its divisors is an integer number (5106106081).

Almost surely, 2^10212212161 is an apocalyptic number.

It is an amenable number.

10212212161 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212212161 is an equidigital number, since it uses as much as digits as its factorization.

10212212161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 10212212161 its reverse (16121221201), we get a palindrome (26333433362).

The spelling of 10212212161 in words is "ten billion, two hundred twelve million, two hundred twelve thousand, one hundred sixty-one".