121112022110161 has 2 divisors, whose sum is σ = 121112022110162. Its totient is φ = 121112022110160.

The previous prime is 121112022110129. The next prime is 121112022110207. The reversal of 121112022110161 is 161011220211121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106687332049936 + 14424690060225 = 10328956^2 + 3797985^2 .

It is a cyclic number.

It is not a de Polignac number, because 121112022110161 - 2⁵ = 121112022110129 is a prime.

It is a super-2 number, since 2×121112022110161² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121112022810161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60556011055080 + 60556011055081.

It is an arithmetic number, because the mean of its divisors is an integer number (60556011055081).

Almost surely, 2^{121112022110161} is an apocalyptic number.

It is an amenable number.

121112022110161 is a deficient number, since it is larger than the sum of its proper divisors (1).

121112022110161 is an equidigital number, since it uses as much as digits as its factorization.

121112022110161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 22.

Adding to 121112022110161 its reverse (161011220211121), we get a palindrome (282123242321282).

The spelling of 121112022110161 in words is "one hundred twenty-one trillion, one hundred twelve billion, twenty-two million, one hundred ten thousand, one hundred sixty-one".