1002223304545 has 4 divisors (see below), whose sum is σ = 1202667965460. Its totient is φ = 801778643632.

The previous prime is 1002223304531. The next prime is 1002223304567. The reversal of 1002223304545 is 5454033222001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 522207124321 + 480016180224 = 722639^2 + 692832^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002223304545 - 2⁵ = 1002223304513 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100222330450 + ... + 100222330459.

It is an arithmetic number, because the mean of its divisors is an integer number (300666991365).

Almost surely, 2^{1002223304545} is an apocalyptic number.

It is an amenable number.

1002223304545 is a deficient number, since it is larger than the sum of its proper divisors (200444660915).

1002223304545 is an equidigital number, since it uses as much as digits as its factorization.

1002223304545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200444660914.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 1002223304545 its reverse (5454033222001), we get a palindrome (6456256526546).

The spelling of 1002223304545 in words is "one trillion, two billion, two hundred twenty-three million, three hundred four thousand, five hundred forty-five".