1222221012973 has 2 divisors, whose sum is σ = 1222221012974. Its totient is φ = 1222221012972.

The previous prime is 1222221012931. The next prime is 1222221013073. The reversal of 1222221012973 is 3792101222221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 877890293764 + 344330719209 = 936958^2 + 586797^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222221012973 - 2¹⁷ = 1222220881901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222224012973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611110506486 + 611110506487.

It is an arithmetic number, because the mean of its divisors is an integer number (611110506487).

Almost surely, 2^{1222221012973} is an apocalyptic number.

It is an amenable number.

1222221012973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222221012973 is an equidigital number, since it uses as much as digits as its factorization.

1222221012973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 1222221012973 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-one million, twelve thousand, nine hundred seventy-three".