121120201112011 has 4 divisors (see below), whose sum is σ = 121158421437400. Its totient is φ = 121081980786624.

The previous prime is 121120201112003. The next prime is 121120201112021. The reversal of 121120201112011 is 110211102021121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121120201112011 - 2³ = 121120201112003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121120201112021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19110157941 + ... + 19110164278.

It is an arithmetic number, because the mean of its divisors is an integer number (30289605359350).

Almost surely, 2^{121120201112011} is an apocalyptic number.

121120201112011 is a deficient number, since it is larger than the sum of its proper divisors (38220325389).

121120201112011 is an equidigital number, since it uses as much as digits as its factorization.

121120201112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38220325388.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 121120201112011 its reverse (110211102021121), we get a palindrome (231331303133132).

The spelling of 121120201112011 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred one million, one hundred twelve thousand, eleven".