121000111110169 has 2 divisors, whose sum is σ = 121000111110170. Its totient is φ = 121000111110168.

The previous prime is 121000111110143. The next prime is 121000111110247. The reversal of 121000111110169 is 961011111000121.

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., 113778062222400 + 7222048887769 = 10666680^2 + 2687387^2 .

It is a cyclic number.

It is not a de Polignac number, because 121000111110169 - 2⁷ = 121000111110041 is a prime.

It is a super-2 number, since 2×121000111110169² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121000111119169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500055555084 + 60500055555085.

It is an arithmetic number, because the mean of its divisors is an integer number (60500055555085).

Almost surely, 2^{121000111110169} is an apocalyptic number.

It is an amenable number.

121000111110169 is a deficient number, since it is larger than the sum of its proper divisors (1).

121000111110169 is an equidigital number, since it uses as much as digits as its factorization.

121000111110169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 25.

The spelling of 121000111110169 in words is "one hundred twenty-one trillion, one hundred eleven million, one hundred ten thousand, one hundred sixty-nine".