121101120100109 has 4 divisors (see below), whose sum is σ = 121171405139616. Its totient is φ = 121030835060604.

The previous prime is 121101120100063. The next prime is 121101120100151. The reversal of 121101120100109 is 901001021101121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121101120100109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101120100309) 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, 35142517169 + ... + 35142520614.

It is an arithmetic number, because the mean of its divisors is an integer number (30292851284904).

Almost surely, 2^{121101120100109} is an apocalyptic number.

It is an amenable number.

121101120100109 is a deficient number, since it is larger than the sum of its proper divisors (70285039507).

121101120100109 is an equidigital number, since it uses as much as digits as its factorization.

121101120100109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70285039506.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 121101120100109 in words is "one hundred twenty-one trillion, one hundred one billion, one hundred twenty million, one hundred thousand, one hundred nine".