1005222221573 has 2 divisors, whose sum is σ = 1005222221574. Its totient is φ = 1005222221572.

The previous prime is 1005222221551. The next prime is 1005222221611. The reversal of 1005222221573 is 3751222225001.

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., 734299889569 + 270922332004 = 856913^2 + 520502^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005222221573 - 2¹⁴ = 1005222205189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005222221473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502611110786 + 502611110787.

It is an arithmetic number, because the mean of its divisors is an integer number (502611110787).

Almost surely, 2^{1005222221573} is an apocalyptic number.

It is an amenable number.

1005222221573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005222221573 is an equidigital number, since it uses as much as digits as its factorization.

1005222221573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 32.

Adding to 1005222221573 its reverse (3751222225001), we get a palindrome (4756444446574).

The spelling of 1005222221573 in words is "one trillion, five billion, two hundred twenty-two million, two hundred twenty-one thousand, five hundred seventy-three".