1123221232127 has 2 divisors, whose sum is σ = 1123221232128. Its totient is φ = 1123221232126.

The previous prime is 1123221232121. The next prime is 1123221232139. The reversal of 1123221232127 is 7212321223211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123221232127 - 2⁴⁰ = 23709604351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1123221232127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123221232121) 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, 561610616063 + 561610616064.

It is an arithmetic number, because the mean of its divisors is an integer number (561610616064).

Almost surely, 2^{1123221232127} is an apocalyptic number.

1123221232127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123221232127 is an equidigital number, since it uses as much as digits as its factorization.

1123221232127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

Adding to 1123221232127 its reverse (7212321223211), we get a palindrome (8335542455338).

The spelling of 1123221232127 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-one million, two hundred thirty-two thousand, one hundred twenty-seven".