212202010122173 has 2 divisors, whose sum is σ = 212202010122174. Its totient is φ = 212202010122172.

The previous prime is 212202010122149. The next prime is 212202010122227. The reversal of 212202010122173 is 371221010202212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164906639193604 + 47295370928569 = 12841598^2 + 6877163^2 .

It is a cyclic number.

It is not a de Polignac number, because 212202010122173 - 2⁸ = 212202010121917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212202010122103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106101005061086 + 106101005061087.

It is an arithmetic number, because the mean of its divisors is an integer number (106101005061087).

Almost surely, 2^{212202010122173} is an apocalyptic number.

It is an amenable number.

212202010122173 is a deficient number, since it is larger than the sum of its proper divisors (1).

212202010122173 is an equidigital number, since it uses as much as digits as its factorization.

212202010122173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 212202010122173 its reverse (371221010202212), we get a palindrome (583423020324385).

The spelling of 212202010122173 in words is "two hundred twelve trillion, two hundred two billion, ten million, one hundred twenty-two thousand, one hundred seventy-three".