12012111001211 has 16 divisors (see below), whose sum is σ = 12360128256000. Its totient is φ = 11668074588768.

The previous prime is 12012111001207. The next prime is 12012111001259. The reversal of 12012111001211 is 11210011121021.

It is not a de Polignac number, because 12012111001211 - 2² = 12012111001207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012111001711) 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, 7863410 + ... + 9265928.

It is an arithmetic number, because the mean of its divisors is an integer number (772508016000).

Almost surely, 2^{12012111001211} is an apocalyptic number.

12012111001211 is a deficient number, since it is larger than the sum of its proper divisors (348017254789).

12012111001211 is a wasteful number, since it uses less digits than its factorization.

12012111001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403938.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12012111001211 its reverse (11210011121021), we get a palindrome (23222122122232).

The spelling of 12012111001211 in words is "twelve trillion, twelve billion, one hundred eleven million, one thousand, two hundred eleven".