12012102211 has 4 divisors (see below), whose sum is σ = 12027723400. Its totient is φ = 11996481024.

The previous prime is 12012102203. The next prime is 12012102217. The reversal of 12012102211 is 11220121021.

12012102211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12012102211 - 2³ = 12012102203 is a prime.

It is a super-2 number, since 2×12012102211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12012102191 and 12012102200.

It is not an unprimeable number, because it can be changed into a prime (12012102217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7809441 + ... + 7810978.

It is an arithmetic number, because the mean of its divisors is an integer number (3006930850).

Almost surely, 2^12012102211 is an apocalyptic number.

12012102211 is a deficient number, since it is larger than the sum of its proper divisors (15621189).

12012102211 is an equidigital number, since it uses as much as digits as its factorization.

12012102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15621188.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12012102211 its reverse (11220121021), we get a palindrome (23232223232).

The spelling of 12012102211 in words is "twelve billion, twelve million, one hundred two thousand, two hundred eleven".