1222560769 has 2 divisors, whose sum is σ = 1222560770. Its totient is φ = 1222560768.

The previous prime is 1222560767. The next prime is 1222560809. The reversal of 1222560769 is 9670652221.

It is an a-pointer prime, because the next prime (1222560809) can be obtained adding 1222560769 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 734681025 + 487879744 = 27105^2 + 22088^2 .

It is an emirp because it is prime and its reverse (9670652221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222560769 - 2¹ = 1222560767 is a prime.

It is a super-2 number, since 2×1222560769² = 2989309667795742722, which contains 22 as substring.

Together with 1222560767, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1222560761) 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, 611280384 + 611280385.

It is an arithmetic number, because the mean of its divisors is an integer number (611280385).

Almost surely, 2^1222560769 is an apocalyptic number.

It is an amenable number.

1222560769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222560769 is an equidigital number, since it uses as much as digits as its factorization.

1222560769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 1222560769 is about 34965.1364790701. The cubic root of 1222560769 is about 1069.2768191045.

The spelling of 1222560769 in words is "one billion, two hundred twenty-two million, five hundred sixty thousand, seven hundred sixty-nine".