1200212210069 has 2 divisors, whose sum is σ = 1200212210070. Its totient is φ = 1200212210068.

The previous prime is 1200212210009. The next prime is 1200212210077. The reversal of 1200212210069 is 9600122120021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1037468547844 + 162743662225 = 1018562^2 + 403415^2 .

It is an emirp because it is prime and its reverse (9600122120021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1200212210069 - 2⁸ = 1200212209813 is a prime.

It is a super-2 number, since 2×1200212210069² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200212210009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600106105034 + 600106105035.

It is an arithmetic number, because the mean of its divisors is an integer number (600106105035).

Almost surely, 2^{1200212210069} is an apocalyptic number.

It is an amenable number.

1200212210069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200212210069 is an equidigital number, since it uses as much as digits as its factorization.

1200212210069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 1200212210069 in words is "one trillion, two hundred billion, two hundred twelve million, two hundred ten thousand, sixty-nine".