121192117 has 2 divisors, whose sum is σ = 121192118. Its totient is φ = 121192116.

The previous prime is 121192111. The next prime is 121192151. The reversal of 121192117 is 711291121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120253156 + 938961 = 10966^2 + 969^2 .

It is an emirp because it is prime and its reverse (711291121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121192117 - 2³ = 121192109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121192091 and 121192100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121192111) 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, 60596058 + 60596059.

It is an arithmetic number, because the mean of its divisors is an integer number (60596059).

Almost surely, 2^121192117 is an apocalyptic number.

It is an amenable number.

121192117 is a deficient number, since it is larger than the sum of its proper divisors (1).

121192117 is an equidigital number, since it uses as much as digits as its factorization.

121192117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252, while the sum is 25.

The square root of 121192117 is about 11008.7291273789. The cubic root of 121192117 is about 494.8703765614.

The spelling of 121192117 in words is "one hundred twenty-one million, one hundred ninety-two thousand, one hundred seventeen".