221411243241 has 12 divisors (see below), whose sum is σ = 320528531700. Its totient is φ = 147278745600.

The previous prime is 221411243237. The next prime is 221411243267. The reversal of 221411243241 is 142342114122.

221411243241 is a `hidden beast` number, since 2 + 2 + 1 + 411 + 2 + 4 + 3 + 241 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 114545018025 + 106866225216 = 338445^2 + 326904^2 .

It is not a de Polignac number, because 221411243241 - 2² = 221411243237 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221411243201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27391560 + ... + 27399641.

It is an arithmetic number, because the mean of its divisors is an integer number (26710710975).

Almost surely, 2^221411243241 is an apocalyptic number.

It is an amenable number.

221411243241 is a deficient number, since it is larger than the sum of its proper divisors (99117288459).

221411243241 is a wasteful number, since it uses less digits than its factorization.

221411243241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54791656 (or 54791653 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 221411243241 its reverse (142342114122), we get a palindrome (363753357363).

The spelling of 221411243241 in words is "two hundred twenty-one billion, four hundred eleven million, two hundred forty-three thousand, two hundred forty-one".