12101011020121 has 8 divisors (see below), whose sum is σ = 12106648805184. Its totient is φ = 12095374533840.

The previous prime is 12101011020071. The next prime is 12101011020191. The reversal of 12101011020121 is 12102011010121.

It is a happy number.

12101011020121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12101011020121 - 2¹¹ = 12101011018073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12101011020191) 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, 18569191 + ... + 19209811.

It is an arithmetic number, because the mean of its divisors is an integer number (1513331100648).

Almost surely, 2^{12101011020121} is an apocalyptic number.

It is an amenable number.

12101011020121 is a deficient number, since it is larger than the sum of its proper divisors (5637785063).

12101011020121 is an equidigital number, since it uses as much as digits as its factorization.

12101011020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649391.

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

Adding to 12101011020121 its reverse (12102011010121), we get a palindrome (24203022030242).

The spelling of 12101011020121 in words is "twelve trillion, one hundred one billion, eleven million, twenty thousand, one hundred twenty-one".