121110020110021 has 8 divisors (see below), whose sum is σ = 123432518800800. Its totient is φ = 118788906751632.

The previous prime is 121110020110019. The next prime is 121110020110097. The reversal of 121110020110021 is 120011020011121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121110020110021 - 2¹ = 121110020110019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121110020109983 and 121110020110010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121110020170021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346156575 + ... + 346506268.

It is an arithmetic number, because the mean of its divisors is an integer number (15429064850100).

Almost surely, 2^{121110020110021} is an apocalyptic number.

It is an amenable number.

121110020110021 is a deficient number, since it is larger than the sum of its proper divisors (2322498690779).

121110020110021 is an equidigital number, since it uses as much as digits as its factorization.

121110020110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692666195.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121110020110021 its reverse (120011020011121), we get a palindrome (241121040121142).

The spelling of 121110020110021 in words is "one hundred twenty-one trillion, one hundred ten billion, twenty million, one hundred ten thousand, twenty-one".