1225243234669 has 2 divisors, whose sum is σ = 1225243234670. Its totient is φ = 1225243234668.

The previous prime is 1225243234651. The next prime is 1225243234679. The reversal of 1225243234669 is 9664323425221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1008588361225 + 216654873444 = 1004285^2 + 465462^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225243234669 - 2⁷ = 1225243234541 is a prime.

It is a super-2 number, since 2×1225243234669² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225243234679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612621617334 + 612621617335.

It is an arithmetic number, because the mean of its divisors is an integer number (612621617335).

Almost surely, 2^{1225243234669} is an apocalyptic number.

It is an amenable number.

1225243234669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225243234669 is an equidigital number, since it uses as much as digits as its factorization.

1225243234669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 49.

The spelling of 1225243234669 in words is "one trillion, two hundred twenty-five billion, two hundred forty-three million, two hundred thirty-four thousand, six hundred sixty-nine".