12012110012211 has 4 divisors (see below), whose sum is σ = 16016146682952. Its totient is φ = 8008073341472.

The previous prime is 12012110012173. The next prime is 12012110012213. The reversal of 12012110012211 is 11221001121021.

It is a happy number.

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 12012110012211 - 2¹⁹ = 12012109487923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12012110012213) 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, 2002018335366 + ... + 2002018335371.

It is an arithmetic number, because the mean of its divisors is an integer number (4004036670738).

Almost surely, 2^{12012110012211} is an apocalyptic number.

12012110012211 is a deficient number, since it is larger than the sum of its proper divisors (4004036670741).

12012110012211 is an equidigital number, since it uses as much as digits as its factorization.

12012110012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004036670740.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12012110012211 its reverse (11221001121021), we get a palindrome (23233111133232).

The spelling of 12012110012211 in words is "twelve trillion, twelve billion, one hundred ten million, twelve thousand, two hundred eleven".