12222220110173 has 2 divisors, whose sum is σ = 12222220110174. Its totient is φ = 12222220110172.

The previous prime is 12222220110017. The next prime is 12222220110209. The reversal of 12222220110173 is 37101102222221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7419451433689 + 4802768676484 = 2723867^2 + 2191522^2 .

It is an emirp because it is prime and its reverse (37101102222221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12222220110173 - 2²⁶ = 12222153001309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12222220110773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111110055086 + 6111110055087.

It is an arithmetic number, because the mean of its divisors is an integer number (6111110055087).

Almost surely, 2^{12222220110173} is an apocalyptic number.

It is an amenable number.

12222220110173 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222220110173 is an equidigital number, since it uses as much as digits as its factorization.

12222220110173 is an odious number, because the sum of its binary digits is odd.

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

Adding to 12222220110173 its reverse (37101102222221), we get a palindrome (49323322332394).

The spelling of 12222220110173 in words is "twelve trillion, two hundred twenty-two billion, two hundred twenty million, one hundred ten thousand, one hundred seventy-three".