12212122221043 has 2 divisors, whose sum is σ = 12212122221044. Its totient is φ = 12212122221042.

The previous prime is 12212122221001. The next prime is 12212122221107. The reversal of 12212122221043 is 34012222121221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12212122221043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12212122220999 and 12212122221017.

It is not a weakly prime, because it can be changed into another prime (12212122227043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106061110521 + 6106061110522.

It is an arithmetic number, because the mean of its divisors is an integer number (6106061110522).

Almost surely, 2^{12212122221043} is an apocalyptic number.

12212122221043 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212122221043 is an equidigital number, since it uses as much as digits as its factorization.

12212122221043 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 12212122221043 its reverse (34012222121221), we get a palindrome (46224344342264).

The spelling of 12212122221043 in words is "twelve trillion, two hundred twelve billion, one hundred twenty-two million, two hundred twenty-one thousand, forty-three".