12102122173 has 2 divisors, whose sum is σ = 12102122174. Its totient is φ = 12102122172.

The previous prime is 12102122161. The next prime is 12102122177. The reversal of 12102122173 is 37122120121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11351197764 + 750924409 = 106542^2 + 27403^2 .

It is a cyclic number.

It is not a de Polignac number, because 12102122173 - 2¹³ = 12102113981 is a prime.

It is a super-2 number, since 2×12102122173² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12102122177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051061086 + 6051061087.

It is an arithmetic number, because the mean of its divisors is an integer number (6051061087).

Almost surely, 2^12102122173 is an apocalyptic number.

It is an amenable number.

12102122173 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102122173 is an equidigital number, since it uses as much as digits as its factorization.

12102122173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 12102122173 its reverse (37122120121), we get a palindrome (49224242294).

The spelling of 12102122173 in words is "twelve billion, one hundred two million, one hundred twenty-two thousand, one hundred seventy-three".