121136190998 has 16 divisors (see below), whose sum is σ = 192568855680. Its totient is φ = 56953094016.

The previous prime is 121136190997. The next prime is 121136191009. The reversal of 121136190998 is 899091631121.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121136190991) 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 in 7 ways as a sum of consecutive naturals, for example, 1592678 + ... + 1667001.

It is an arithmetic number, because the mean of its divisors is an integer number (12035553480).

Almost surely, 2^121136190998 is an apocalyptic number.

121136190998 is a deficient number, since it is larger than the sum of its proper divisors (71432664682).

121136190998 is a wasteful number, since it uses less digits than its factorization.

121136190998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260791.

The product of its (nonzero) digits is 209952, while the sum is 50.

The spelling of 121136190998 in words is "one hundred twenty-one billion, one hundred thirty-six million, one hundred ninety thousand, nine hundred ninety-eight".