121120212012209 has 8 divisors (see below), whose sum is σ = 124768752820800. Its totient is φ = 117509479916976.

The previous prime is 121120212012157. The next prime is 121120212012211. The reversal of 121120212012209 is 902210212021121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121120212012209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121120212042209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9452171837 + ... + 9452184650.

It is an arithmetic number, because the mean of its divisors is an integer number (15596094102600).

Almost surely, 2^{121120212012209} is an apocalyptic number.

It is an amenable number.

121120212012209 is a deficient number, since it is larger than the sum of its proper divisors (3648540808591).

121120212012209 is a wasteful number, since it uses less digits than its factorization.

121120212012209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18904356679.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 121120212012209 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred twelve million, twelve thousand, two hundred nine".