12012223212211 has 16 divisors (see below), whose sum is σ = 12271401264384. Its totient is φ = 11755683684864.

The previous prime is 12012223212151. The next prime is 12012223212277. The reversal of 12012223212211 is 11221232221021.

It is a cyclic number.

It is not a de Polignac number, because 12012223212211 - 2⁹ = 12012223211699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012223215211) 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, 21151905 + ... + 21712381.

It is an arithmetic number, because the mean of its divisors is an integer number (766962579024).

Almost surely, 2^{12012223212211} is an apocalyptic number.

12012223212211 is a deficient number, since it is larger than the sum of its proper divisors (259178052173).

12012223212211 is a wasteful number, since it uses less digits than its factorization.

12012223212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562830.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 12012223212211 its reverse (11221232221021), we get a palindrome (23233455433232).

The spelling of 12012223212211 in words is "twelve trillion, twelve billion, two hundred twenty-three million, two hundred twelve thousand, two hundred eleven".