221411241 has 6 divisors (see below), whose sum is σ = 319816250. Its totient is φ = 147607488.

The previous prime is 221411233. The next prime is 221411251. The reversal of 221411241 is 142114122.

It can be written as a sum of positive squares in only one way, i.e., 163712025 + 57699216 = 12795^2 + 7596^2 .

It is not a de Polignac number, because 221411241 - 2³ = 221411233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221411221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12300616 + ... + 12300633.

Almost surely, 2^221411241 is an apocalyptic number.

It is an amenable number.

221411241 is a deficient number, since it is larger than the sum of its proper divisors (98405009).

221411241 is a wasteful number, since it uses less digits than its factorization.

221411241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24601255 (or 24601252 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 221411241 is about 14879.8938504278. The cubic root of 221411241 is about 604.9691407888.

Adding to 221411241 its reverse (142114122), we get a palindrome (363525363).

The spelling of 221411241 in words is "two hundred twenty-one million, four hundred eleven thousand, two hundred forty-one".