1222111112147 has 2 divisors, whose sum is σ = 1222111112148. Its totient is φ = 1222111112146.

The previous prime is 1222111112071. The next prime is 1222111112191. The reversal of 1222111112147 is 7412111112221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222111112147 - 2²⁰ = 1222110063571 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222111112197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611055556073 + 611055556074.

It is an arithmetic number, because the mean of its divisors is an integer number (611055556074).

Almost surely, 2^{1222111112147} is an apocalyptic number.

1222111112147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222111112147 is an equidigital number, since it uses as much as digits as its factorization.

1222111112147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 448, while the sum is 26.

Adding to 1222111112147 its reverse (7412111112221), we get a palindrome (8634222224368).

The spelling of 1222111112147 in words is "one trillion, two hundred twenty-two billion, one hundred eleven million, one hundred twelve thousand, one hundred forty-seven".