121001100011109 has 24 divisors (see below), whose sum is σ = 180826186064160. Its totient is φ = 77877173975328.

The previous prime is 121001100011087. The next prime is 121001100011189. The reversal of 121001100011109 is 901110001100121.

It is not a de Polignac number, because 121001100011109 - 2⁷ = 121001100010981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121001100011091 and 121001100011100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001100011189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23199067 + ... + 27932040.

It is an arithmetic number, because the mean of its divisors is an integer number (7534424419340).

Almost surely, 2^{121001100011109} is an apocalyptic number.

It is an amenable number.

121001100011109 is a deficient number, since it is larger than the sum of its proper divisors (59825086053051).

121001100011109 is a wasteful number, since it uses less digits than its factorization.

121001100011109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51140209 (or 51140206 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 18.

The spelling of 121001100011109 in words is "one hundred twenty-one trillion, one billion, one hundred million, eleven thousand, one hundred nine".