1224221112193 has 2 divisors, whose sum is σ = 1224221112194. Its totient is φ = 1224221112192.

The previous prime is 1224221112187. The next prime is 1224221112241. The reversal of 1224221112193 is 3912111224221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1209861403969 + 14359708224 = 1099937^2 + 119832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1224221112193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1224221112173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612110556096 + 612110556097.

It is an arithmetic number, because the mean of its divisors is an integer number (612110556097).

Almost surely, 2^{1224221112193} is an apocalyptic number.

It is an amenable number.

1224221112193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224221112193 is an equidigital number, since it uses as much as digits as its factorization.

1224221112193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 31.

The spelling of 1224221112193 in words is "one trillion, two hundred twenty-four billion, two hundred twenty-one million, one hundred twelve thousand, one hundred ninety-three".