1122221221973 has 2 divisors, whose sum is σ = 1122221221974. Its totient is φ = 1122221221972.

The previous prime is 1122221221967. The next prime is 1122221222099. The reversal of 1122221221973 is 3791221222211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 794697365764 + 327523856209 = 891458^2 + 572297^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122221221973 - 2⁸ = 1122221221717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122221221573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561110610986 + 561110610987.

It is an arithmetic number, because the mean of its divisors is an integer number (561110610987).

Almost surely, 2^{1122221221973} is an apocalyptic number.

It is an amenable number.

1122221221973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122221221973 is an equidigital number, since it uses as much as digits as its factorization.

1122221221973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The spelling of 1122221221973 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred twenty-one thousand, nine hundred seventy-three".