121120201112009 has 4 divisors (see below), whose sum is σ = 132131128485840. Its totient is φ = 110109273738180.

The previous prime is 121120201112003. The next prime is 121120201112021. The reversal of 121120201112009 is 900211102021121.

It is a happy number.

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 not a de Polignac number, because 121120201112009 - 2²⁸ = 121119932676553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121120201112003) 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, 5505463686899 + ... + 5505463686920.

It is an arithmetic number, because the mean of its divisors is an integer number (33032782121460).

Almost surely, 2^{121120201112009} is an apocalyptic number.

It is an amenable number.

121120201112009 is a deficient number, since it is larger than the sum of its proper divisors (11010927373831).

121120201112009 is a wasteful number, since it uses less digits than its factorization.

121120201112009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11010927373830.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 121120201112009 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred one million, one hundred twelve thousand, nine".