1212210120973 has 2 divisors, whose sum is σ = 1212210120974. Its totient is φ = 1212210120972.

The previous prime is 1212210120923. The next prime is 1212210120983. The reversal of 1212210120973 is 3790210122121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 980967431844 + 231242689129 = 990438^2 + 480877^2 .

It is an emirp because it is prime and its reverse (3790210122121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1212210120973 - 2²⁵ = 1212176566541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212210120923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606105060486 + 606105060487.

It is an arithmetic number, because the mean of its divisors is an integer number (606105060487).

Almost surely, 2^{1212210120973} is an apocalyptic number.

It is an amenable number.

1212210120973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212210120973 is an equidigital number, since it uses as much as digits as its factorization.

1212210120973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The spelling of 1212210120973 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred twenty thousand, nine hundred seventy-three".