1225356075443 has 2 divisors, whose sum is σ = 1225356075444. Its totient is φ = 1225356075442.

The previous prime is 1225356075371. The next prime is 1225356075457. The reversal of 1225356075443 is 3445706535221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1225356075443 - 2¹⁰ = 1225356074419 is a prime.

It is a super-2 number, since 2×1225356075443² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1225356375443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612678037721 + 612678037722.

It is an arithmetic number, because the mean of its divisors is an integer number (612678037722).

Almost surely, 2^{1225356075443} is an apocalyptic number.

1225356075443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225356075443 is an equidigital number, since it uses as much as digits as its factorization.

1225356075443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024000, while the sum is 47.

The spelling of 1225356075443 in words is "one trillion, two hundred twenty-five billion, three hundred fifty-six million, seventy-five thousand, four hundred forty-three".