1200012110069 has 2 divisors, whose sum is σ = 1200012110070. Its totient is φ = 1200012110068.

The previous prime is 1200012110027. The next prime is 1200012110083. The reversal of 1200012110069 is 9600112100021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 648891469444 + 551120640625 = 805538^2 + 742375^2 .

It is an emirp because it is prime and its reverse (9600112100021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1200012110069 - 2¹⁶ = 1200012044533 is a prime.

It is a super-2 number, since 2×1200012110069² (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 (1200012110569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600006055034 + 600006055035.

It is an arithmetic number, because the mean of its divisors is an integer number (600006055035).

Almost surely, 2^{1200012110069} is an apocalyptic number.

It is an amenable number.

1200012110069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200012110069 is an equidigital number, since it uses as much as digits as its factorization.

1200012110069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 1200012110069 in words is "one trillion, two hundred billion, twelve million, one hundred ten thousand, sixty-nine".