12122012221043 has 2 divisors, whose sum is σ = 12122012221044. Its totient is φ = 12122012221042.

The previous prime is 12122012221013. The next prime is 12122012221051. The reversal of 12122012221043 is 34012221022121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12122012221043 - 2⁴² = 7723965709939 is a prime.

It is not a weakly prime, because it can be changed into another prime (12122012221013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061006110521 + 6061006110522.

It is an arithmetic number, because the mean of its divisors is an integer number (6061006110522).

Almost surely, 2^{12122012221043} is an apocalyptic number.

12122012221043 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122012221043 is an equidigital number, since it uses as much as digits as its factorization.

12122012221043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 12122012221043 its reverse (34012221022121), we get a palindrome (46134233243164).

The spelling of 12122012221043 in words is "twelve trillion, one hundred twenty-two billion, twelve million, two hundred twenty-one thousand, forty-three".