12121120001011 has 48 divisors (see below), whose sum is σ = 15022232064000. Its totient is φ = 9774209391744.

The previous prime is 12121120000967. The next prime is 12121120001021. The reversal of 12121120001011 is 11010002112121.

It is a happy number.

12121120001011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12121120001011 - 2¹⁷ = 12121119869939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12121120000982 and 12121120001000.

It is not an unprimeable number, because it can be changed into a prime (12121120001021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 243728430 + ... + 243778156.

It is an arithmetic number, because the mean of its divisors is an integer number (312963168000).

Almost surely, 2^{12121120001011} is an apocalyptic number.

12121120001011 is a deficient number, since it is larger than the sum of its proper divisors (2901112062989).

12121120001011 is an equidigital number, since it uses as much as digits as its factorization.

12121120001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52241 (or 52210 counting only the distinct ones).

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

Adding to 12121120001011 its reverse (11010002112121), we get a palindrome (23131122113132).

The spelling of 12121120001011 in words is "twelve trillion, one hundred twenty-one billion, one hundred twenty million, one thousand, eleven".