1212210012073 has 2 divisors, whose sum is σ = 1212210012074. Its totient is φ = 1212210012072.

The previous prime is 1212210012061. The next prime is 1212210012077. The reversal of 1212210012073 is 3702100122121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 713261324304 + 498948687769 = 844548^2 + 706363^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212210012073 - 2²¹ = 1212207914921 is a prime.

It is a super-2 number, since 2×1212210012073² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212210012077) 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, 606105006036 + 606105006037.

It is an arithmetic number, because the mean of its divisors is an integer number (606105006037).

Almost surely, 2^{1212210012073} is an apocalyptic number.

It is an amenable number.

1212210012073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212210012073 is an equidigital number, since it uses as much as digits as its factorization.

1212210012073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 1212210012073 its reverse (3702100122121), we get a palindrome (4914310134194).

The spelling of 1212210012073 in words is "one trillion, two hundred twelve billion, two hundred ten million, twelve thousand, seventy-three".