411221 has 4 divisors (see below), whose sum is σ = 413772. Its totient is φ = 408672.

The previous prime is 411211. The next prime is 411233. The reversal of 411221 is 122114.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122114 = 2 ⋅61057.

It can be written as a sum of positive squares in 2 ways, for example, as 280900 + 130321 = 530^2 + 361^2 .

It is a cyclic number.

It is not a de Polignac number, because 411221 - 2⁶ = 411157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016 + ... + 1361.

It is an arithmetic number, because the mean of its divisors is an integer number (103443).

2⁴¹¹²²¹ is an apocalyptic number.

It is an amenable number.

411221 is a deficient number, since it is larger than the sum of its proper divisors (2551).

411221 is a wasteful number, since it uses less digits than its factorization.

411221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550.

The product of its digits is 16, while the sum is 11.

The square root of 411221 is about 641.2651557663. The cubic root of 411221 is about 74.3632613350.

Adding to 411221 its reverse (122114), we get a palindrome (533335).

The spelling of 411221 in words is "four hundred eleven thousand, two hundred twenty-one", and thus it is an iban number.