1004224404521 has 8 divisors (see below), whose sum is σ = 1099802477760. Its totient is φ = 911264908752.

The previous prime is 1004224404503. The next prime is 1004224404581. The reversal of 1004224404521 is 1254044224001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1004224404521 - 2³⁸ = 729346497577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004224404581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654643565 + ... + 654645098.

It is an arithmetic number, because the mean of its divisors is an integer number (137475309720).

Almost surely, 2^{1004224404521} is an apocalyptic number.

It is an amenable number.

1004224404521 is a deficient number, since it is larger than the sum of its proper divisors (95578073239).

1004224404521 is a wasteful number, since it uses less digits than its factorization.

1004224404521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309288735.

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 1004224404521 its reverse (1254044224001), we get a palindrome (2258268628522).

The spelling of 1004224404521 in words is "one trillion, four billion, two hundred twenty-four million, four hundred four thousand, five hundred twenty-one".