1212122202073 has 2 divisors, whose sum is σ = 1212122202074. Its totient is φ = 1212122202072.

The previous prime is 1212122202037. The next prime is 1212122202139. The reversal of 1212122202073 is 3702022212121.

Together with previous prime (1212122202037) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1194415109449 + 17707092624 = 1092893^2 + 133068^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212122202073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212122202013) 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, 606061101036 + 606061101037.

It is an arithmetic number, because the mean of its divisors is an integer number (606061101037).

Almost surely, 2^{1212122202073} is an apocalyptic number.

It is an amenable number.

1212122202073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212122202073 is an equidigital number, since it uses as much as digits as its factorization.

1212122202073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 1212122202073 its reverse (3702022212121), we get a palindrome (4914144414194).

The spelling of 1212122202073 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, two hundred two thousand, seventy-three".