410421221 has 16 divisors (see below), whose sum is σ = 474159744. Its totient is φ = 347982144.

The previous prime is 410421217. The next prime is 410421233. The reversal of 410421221 is 122124014.

It is a cyclic number.

It is not a de Polignac number, because 410421221 - 2² = 410421217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 410421221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (410421281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274151 + ... + 275643.

It is an arithmetic number, because the mean of its divisors is an integer number (29634984).

Almost surely, 2^410421221 is an apocalyptic number.

It is an amenable number.

410421221 is a deficient number, since it is larger than the sum of its proper divisors (63738523).

410421221 is a wasteful number, since it uses less digits than its factorization.

410421221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 410421221 is about 20258.8553724044. The cubic root of 410421221 is about 743.1502062957.

Adding to 410421221 its reverse (122124014), we get a palindrome (532545235).

The spelling of 410421221 in words is "four hundred ten million, four hundred twenty-one thousand, two hundred twenty-one".