1225222225193 has 2 divisors, whose sum is σ = 1225222225194. Its totient is φ = 1225222225192.

The previous prime is 1225222225181. The next prime is 1225222225309. The reversal of 1225222225193 is 3915222225221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 822672582169 + 402549643024 = 907013^2 + 634468^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225222225193 - 2¹⁰ = 1225222224169 is a prime.

It is a super-2 number, since 2×1225222225193² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1225222225093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612611112596 + 612611112597.

It is an arithmetic number, because the mean of its divisors is an integer number (612611112597).

Almost surely, 2^{1225222225193} is an apocalyptic number.

It is an amenable number.

1225222225193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225222225193 is an equidigital number, since it uses as much as digits as its factorization.

1225222225193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 38.

The spelling of 1225222225193 in words is "one trillion, two hundred twenty-five billion, two hundred twenty-two million, two hundred twenty-five thousand, one hundred ninety-three".