121112120089 has 2 divisors, whose sum is σ = 121112120090. Its totient is φ = 121112120088.

The previous prime is 121112120083. The next prime is 121112120149. The reversal of 121112120089 is 980021211121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119104363225 + 2007756864 = 345115^2 + 44808^2 .

It is a cyclic number.

It is not a de Polignac number, because 121112120089 - 2²³ = 121103731481 is a prime.

It is not a weakly prime, because it can be changed into another prime (121112120083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60556060044 + 60556060045.

It is an arithmetic number, because the mean of its divisors is an integer number (60556060045).

Almost surely, 2^121112120089 is an apocalyptic number.

It is an amenable number.

121112120089 is a deficient number, since it is larger than the sum of its proper divisors (1).

121112120089 is an equidigital number, since it uses as much as digits as its factorization.

121112120089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 28.

The spelling of 121112120089 in words is "one hundred twenty-one billion, one hundred twelve million, one hundred twenty thousand, eighty-nine".