4408222913521 has 32 divisors (see below), whose sum is σ = 5203746892800. Its totient is φ = 3732373512000.

The previous prime is 4408222913513. The next prime is 4408222913533. The reversal of 4408222913521 is 1253192228044.

It is not a de Polignac number, because 4408222913521 - 2³ = 4408222913513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4408222913021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14783515 + ... + 15078751.

It is an arithmetic number, because the mean of its divisors is an integer number (162617090400).

Almost surely, 2^{4408222913521} is an apocalyptic number.

It is an amenable number.

4408222913521 is a deficient number, since it is larger than the sum of its proper divisors (795523979279).

4408222913521 is a wasteful number, since it uses less digits than its factorization.

4408222913521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295790 (or 295776 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 4408222913521 in words is "four trillion, four hundred eight billion, two hundred twenty-two million, nine hundred thirteen thousand, five hundred twenty-one".