1222263563 has 2 divisors, whose sum is σ = 1222263564. Its totient is φ = 1222263562.

The previous prime is 1222263541. The next prime is 1222263571. The reversal of 1222263563 is 3653622221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222263563 - 2²⁶ = 1155154699 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222263503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611131781 + 611131782.

It is an arithmetic number, because the mean of its divisors is an integer number (611131782).

Almost surely, 2^1222263563 is an apocalyptic number.

1222263563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222263563 is an equidigital number, since it uses as much as digits as its factorization.

1222263563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 32.

The square root of 1222263563 is about 34960.8861872808. The cubic root of 1222263563 is about 1069.1901645867.

Adding to 1222263563 its reverse (3653622221), we get a palindrome (4875885784).

The spelling of 1222263563 in words is "one billion, two hundred twenty-two million, two hundred sixty-three thousand, five hundred sixty-three".