121112121051169 has 2 divisors, whose sum is σ = 121112121051170. Its totient is φ = 121112121051168.

The previous prime is 121112121051157. The next prime is 121112121051223. The reversal of 121112121051169 is 961150121211121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108644244795025 + 12467876256144 = 10423255^2 + 3530988^2 .

It is a cyclic number.

It is not a de Polignac number, because 121112121051169 - 2³⁷ = 120974682097697 is a prime.

It is a super-2 number, since 2×121112121051169² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121112121051109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60556060525584 + 60556060525585.

It is an arithmetic number, because the mean of its divisors is an integer number (60556060525585).

Almost surely, 2^{121112121051169} is an apocalyptic number.

It is an amenable number.

121112121051169 is a deficient number, since it is larger than the sum of its proper divisors (1).

121112121051169 is an equidigital number, since it uses as much as digits as its factorization.

121112121051169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 34.

The spelling of 121112121051169 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred twenty-one million, fifty-one thousand, one hundred sixty-nine".