1225434091699 has 2 divisors, whose sum is σ = 1225434091700. Its totient is φ = 1225434091698.

The previous prime is 1225434091657. The next prime is 1225434091723. The reversal of 1225434091699 is 9961904345221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1225434091699 - 2²⁷ = 1225299873971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1225434091639) 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, 612717045849 + 612717045850.

It is an arithmetic number, because the mean of its divisors is an integer number (612717045850).

Almost surely, 2^{1225434091699} is an apocalyptic number.

1225434091699 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225434091699 is an equidigital number, since it uses as much as digits as its factorization.

1225434091699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 1225434091699 in words is "one trillion, two hundred twenty-five billion, four hundred thirty-four million, ninety-one thousand, six hundred ninety-nine".