404322412240221 has 8 divisors (see below), whose sum is σ = 539115679554144. Its totient is φ = 269538709876560.

The previous prime is 404322412240141. The next prime is 404322412240261. The reversal of 404322412240221 is 122042214223404.

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

It is a de Polignac number, because none of the positive numbers 2^k-404322412240221 is a prime.

It is a super-2 number, since 2×404322412240221² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404322412240261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2391138931 + ... + 2391308016.

It is an arithmetic number, because the mean of its divisors is an integer number (67389459944268).

Almost surely, 2^{404322412240221} is an apocalyptic number.

It is an amenable number.

404322412240221 is a deficient number, since it is larger than the sum of its proper divisors (134793267313923).

404322412240221 is a wasteful number, since it uses less digits than its factorization.

404322412240221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4782475131.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 404322412240221 its reverse (122042214223404), we get a palindrome (526364626463625).

The spelling of 404322412240221 in words is "four hundred four trillion, three hundred twenty-two billion, four hundred twelve million, two hundred forty thousand, two hundred twenty-one".