12012111012211 has 16 divisors (see below), whose sum is σ = 12735317871360. Its totient is φ = 11309766791680.

The previous prime is 12012111012137. The next prime is 12012111012221. The reversal of 12012111012211 is 11221011121021.

12012111012211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12012111012211 - 2⁹ = 12012111011699 is a prime.

It is a super-2 number, since 2×12012111012211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012111012221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213726 + ... + 4906108.

It is an arithmetic number, because the mean of its divisors is an integer number (795957366960).

Almost surely, 2^{12012111012211} is an apocalyptic number.

12012111012211 is a deficient number, since it is larger than the sum of its proper divisors (723206859149).

12012111012211 is a wasteful number, since it uses less digits than its factorization.

12012111012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4694606.

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

Adding to 12012111012211 its reverse (11221011121021), we get a palindrome (23233122133232).

The spelling of 12012111012211 in words is "twelve trillion, twelve billion, one hundred eleven million, twelve thousand, two hundred eleven".