411811221 has 16 divisors (see below), whose sum is σ = 569208384. Its totient is φ = 264616704.

The previous prime is 411811199. The next prime is 411811237. The reversal of 411811221 is 122118114.

It is not a de Polignac number, because 411811221 - 2¹⁰ = 411810197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411811261) 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, 5460 + ... + 29213.

It is an arithmetic number, because the mean of its divisors is an integer number (35575524).

Almost surely, 2^411811221 is an apocalyptic number.

It is an amenable number.

411811221 is a deficient number, since it is larger than the sum of its proper divisors (157397163).

411811221 is a wasteful number, since it uses less digits than its factorization.

411811221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34820.

The product of its digits is 128, while the sum is 21.

The square root of 411811221 is about 20293.1323604810. The cubic root of 411811221 is about 743.9882191885.

Adding to 411811221 its reverse (122118114), we get a palindrome (533929335).

The spelling of 411811221 in words is "four hundred eleven million, eight hundred eleven thousand, two hundred twenty-one".