1212122110343 has 2 divisors, whose sum is σ = 1212122110344. Its totient is φ = 1212122110342.

The previous prime is 1212122110289. The next prime is 1212122110363. The reversal of 1212122110343 is 3430112212121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212122110343 - 2¹⁶ = 1212122044807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212122110363) 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, 606061055171 + 606061055172.

It is an arithmetic number, because the mean of its divisors is an integer number (606061055172).

Almost surely, 2^{1212122110343} is an apocalyptic number.

1212122110343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212122110343 is an equidigital number, since it uses as much as digits as its factorization.

1212122110343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1212122110343 its reverse (3430112212121), we get a palindrome (4642234322464).

The spelling of 1212122110343 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, one hundred ten thousand, three hundred forty-three".