1225243230569 has 2 divisors, whose sum is σ = 1225243230570. Its totient is φ = 1225243230568.

The previous prime is 1225243230479. The next prime is 1225243230583. The reversal of 1225243230569 is 9650323425221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 631707040000 + 593536190569 = 794800^2 + 770413^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225243230569 - 2³² = 1220948263273 is a prime.

It is a super-2 number, since 2×1225243230569² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1225243232569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612621615284 + 612621615285.

It is an arithmetic number, because the mean of its divisors is an integer number (612621615285).

Almost surely, 2^{1225243230569} is an apocalyptic number.

It is an amenable number.

1225243230569 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225243230569 is an equidigital number, since it uses as much as digits as its factorization.

1225243230569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 1225243230569 in words is "one trillion, two hundred twenty-five billion, two hundred forty-three million, two hundred thirty thousand, five hundred sixty-nine".