12012222311 has 2 divisors, whose sum is σ = 12012222312. Its totient is φ = 12012222310.

The previous prime is 12012222307. The next prime is 12012222319. The reversal of 12012222311 is 11322221021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12012222311 - 2² = 12012222307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12012222311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12012222319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006111155 + 6006111156.

It is an arithmetic number, because the mean of its divisors is an integer number (6006111156).

Almost surely, 2^12012222311 is an apocalyptic number.

12012222311 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012222311 is an equidigital number, since it uses as much as digits as its factorization.

12012222311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12012222311 its reverse (11322221021), we get a palindrome (23334443332).

The spelling of 12012222311 in words is "twelve billion, twelve million, two hundred twenty-two thousand, three hundred eleven".