12220122121243 has 2 divisors, whose sum is σ = 12220122121244. Its totient is φ = 12220122121242.

The previous prime is 12220122121159. The next prime is 12220122121307. The reversal of 12220122121243 is 34212122102221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12220122121243 is a prime.

It is not a weakly prime, because it can be changed into another prime (12220122127243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110061060621 + 6110061060622.

It is an arithmetic number, because the mean of its divisors is an integer number (6110061060622).

Almost surely, 2^{12220122121243} is an apocalyptic number.

12220122121243 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220122121243 is an equidigital number, since it uses as much as digits as its factorization.

12220122121243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 12220122121243 its reverse (34212122102221), we get a palindrome (46432244223464).

The spelling of 12220122121243 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred forty-three".