121101116978 has 8 divisors (see below), whose sum is σ = 185876133168. Its totient is φ = 59142405924.

The previous prime is 121101116977. The next prime is 121101117029. The reversal of 121101116978 is 879611101121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121101116977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704076176 + ... + 704076347.

It is an arithmetic number, because the mean of its divisors is an integer number (23234516646).

Almost surely, 2^121101116978 is an apocalyptic number.

121101116978 is a deficient number, since it is larger than the sum of its proper divisors (64775016190).

121101116978 is a wasteful number, since it uses less digits than its factorization.

121101116978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408152568.

The product of its (nonzero) digits is 6048, while the sum is 38.

The spelling of 121101116978 in words is "one hundred twenty-one billion, one hundred one million, one hundred sixteen thousand, nine hundred seventy-eight".