12012102102121 has 4 divisors (see below), whose sum is σ = 13104111384144. Its totient is φ = 10920092820100.

The previous prime is 12012102102023. The next prime is 12012102102163. The reversal of 12012102102121 is 12120120121021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12012102102121 - 2¹¹ = 12012102100073 is a prime.

It is a super-2 number, since 2×12012102102121² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12012102102095 and 12012102102104.

It is not an unprimeable number, because it can be changed into a prime (12012102102181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546004640995 + ... + 546004641016.

It is an arithmetic number, because the mean of its divisors is an integer number (3276027846036).

Almost surely, 2^{12012102102121} is an apocalyptic number.

12012102102121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12012102102121 is a deficient number, since it is larger than the sum of its proper divisors (1092009282023).

12012102102121 is a wasteful number, since it uses less digits than its factorization.

12012102102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092009282022.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12012102102121 its reverse (12120120121021), we get a palindrome (24132222223142).

The spelling of 12012102102121 in words is "twelve trillion, twelve billion, one hundred two million, one hundred two thousand, one hundred twenty-one".