1121000122243 has 2 divisors, whose sum is σ = 1121000122244. Its totient is φ = 1121000122242.

The previous prime is 1121000122147. The next prime is 1121000122247. The reversal of 1121000122243 is 3422210001211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121000122243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121000122243.

It is not a weakly prime, because it can be changed into another prime (1121000122247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560500061121 + 560500061122.

It is an arithmetic number, because the mean of its divisors is an integer number (560500061122).

Almost surely, 2^{1121000122243} is an apocalyptic number.

1121000122243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121000122243 is an equidigital number, since it uses as much as digits as its factorization.

1121000122243 is an evil number, because the sum of its binary digits is even.

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

Adding to 1121000122243 its reverse (3422210001211), we get a palindrome (4543210123454).

The spelling of 1121000122243 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-two thousand, two hundred forty-three".