4405123205221 has 8 divisors (see below), whose sum is σ = 4502260097280. Its totient is φ = 4308128432688.

The previous prime is 4405123205179. The next prime is 4405123205317. The reversal of 4405123205221 is 1225023215044.

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 4405123205221 - 2²⁷ = 4404988987493 is a prime.

It is a super-2 number, since 2×4405123205221² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4405120205221) 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, 35467206 + ... + 35591191.

It is an arithmetic number, because the mean of its divisors is an integer number (562782512160).

Almost surely, 2^{4405123205221} is an apocalyptic number.

It is an amenable number.

4405123205221 is a deficient number, since it is larger than the sum of its proper divisors (97136892059).

4405123205221 is a wasteful number, since it uses less digits than its factorization.

4405123205221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71059763.

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 4405123205221 in words is "four trillion, four hundred five billion, one hundred twenty-three million, two hundred five thousand, two hundred twenty-one".