121112029204171 has 2 divisors, whose sum is σ = 121112029204172. Its totient is φ = 121112029204170.

The previous prime is 121112029204099. The next prime is 121112029204193. The reversal of 121112029204171 is 171402920211121.

It is a strong prime.

It is an emirp because it is prime and its reverse (171402920211121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121112029204171 - 2⁷ = 121112029204043 is a prime.

It is not a weakly prime, because it can be changed into another prime (121112029214171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60556014602085 + 60556014602086.

It is an arithmetic number, because the mean of its divisors is an integer number (60556014602086).

Almost surely, 2^{121112029204171} is an apocalyptic number.

121112029204171 is a deficient number, since it is larger than the sum of its proper divisors (1).

121112029204171 is an equidigital number, since it uses as much as digits as its factorization.

121112029204171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 34.

Adding to 121112029204171 its reverse (171402920211121), we get a palindrome (292514949415292).

The spelling of 121112029204171 in words is "one hundred twenty-one trillion, one hundred twelve billion, twenty-nine million, two hundred four thousand, one hundred seventy-one".