411245221 has 4 divisors (see below), whose sum is σ = 429125472. Its totient is φ = 393364972.

The previous prime is 411245209. The next prime is 411245239. The reversal of 411245221 is 122542114.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 411245221 - 2¹⁵ = 411212453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 411245192 and 411245201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411245321) 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, 8940091 + ... + 8940136.

It is an arithmetic number, because the mean of its divisors is an integer number (107281368).

Almost surely, 2^411245221 is an apocalyptic number.

It is an amenable number.

411245221 is a deficient number, since it is larger than the sum of its proper divisors (17880251).

411245221 is a wasteful number, since it uses less digits than its factorization.

411245221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17880250.

The product of its digits is 640, while the sum is 22.

The square root of 411245221 is about 20279.1819608188. The cubic root of 411245221 is about 743.6472131005.

Adding to 411245221 its reverse (122542114), we get a palindrome (533787335).

The spelling of 411245221 in words is "four hundred eleven million, two hundred forty-five thousand, two hundred twenty-one".