1000112221243 has 2 divisors, whose sum is σ = 1000112221244. Its totient is φ = 1000112221242.

The previous prime is 1000112221183. The next prime is 1000112221253. The reversal of 1000112221243 is 3421222110001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000112221243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000112221243.

It is not a weakly prime, because it can be changed into another prime (1000112221253) 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, 500056110621 + 500056110622.

It is an arithmetic number, because the mean of its divisors is an integer number (500056110622).

Almost surely, 2^{1000112221243} is an apocalyptic number.

1000112221243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000112221243 is an equidigital number, since it uses as much as digits as its factorization.

1000112221243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1000112221243 its reverse (3421222110001), we get a palindrome (4421334331244).

The spelling of 1000112221243 in words is "one trillion, one hundred twelve million, two hundred twenty-one thousand, two hundred forty-three".