121110112020201 has 16 divisors (see below), whose sum is σ = 163430942988096. Its totient is φ = 79764740362496.

The previous prime is 121110112020187. The next prime is 121110112020221. The reversal of 121110112020201 is 102020211011121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121110112020201 - 2⁵ = 121110112020169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121110112020221) 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 15 ways as a sum of consecutive naturals, for example, 29340 + ... + 15563453.

It is an arithmetic number, because the mean of its divisors is an integer number (10214433936756).

Almost surely, 2^{121110112020201} is an apocalyptic number.

It is an amenable number.

121110112020201 is a deficient number, since it is larger than the sum of its proper divisors (42320830967895).

121110112020201 is a wasteful number, since it uses less digits than its factorization.

121110112020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15624072.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121110112020201 its reverse (102020211011121), we get a palindrome (223130323031322).

The spelling of 121110112020201 in words is "one hundred twenty-one trillion, one hundred ten billion, one hundred twelve million, twenty thousand, two hundred one".