1123212222973 has 2 divisors, whose sum is σ = 1123212222974. Its totient is φ = 1123212222972.

The previous prime is 1123212222967. The next prime is 1123212223031. The reversal of 1123212222973 is 3792222123211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 985884168889 + 137328054084 = 992917^2 + 370578^2 .

It is an emirp because it is prime and its reverse (3792222123211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1123212222973 - 2¹³ = 1123212214781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123212225973) 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, 561606111486 + 561606111487.

It is an arithmetic number, because the mean of its divisors is an integer number (561606111487).

Almost surely, 2^{1123212222973} is an apocalyptic number.

It is an amenable number.

1123212222973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123212222973 is an equidigital number, since it uses as much as digits as its factorization.

1123212222973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The spelling of 1123212222973 in words is "one trillion, one hundred twenty-three billion, two hundred twelve million, two hundred twenty-two thousand, nine hundred seventy-three".