241404413221 has 2 divisors, whose sum is σ = 241404413222. Its totient is φ = 241404413220.

The previous prime is 241404413179. The next prime is 241404413249. The reversal of 241404413221 is 122314404142.

It is an a-pointer prime, because the next prime (241404413249) can be obtained adding 241404413221 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240969064996 + 435348225 = 490886^2 + 20865^2 .

It is a cyclic number.

It is not a de Polignac number, because 241404413221 - 2¹¹ = 241404411173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 241404413221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241404413521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120702206610 + 120702206611.

It is an arithmetic number, because the mean of its divisors is an integer number (120702206611).

Almost surely, 2^241404413221 is an apocalyptic number.

It is an amenable number.

241404413221 is a deficient number, since it is larger than the sum of its proper divisors (1).

241404413221 is an equidigital number, since it uses as much as digits as its factorization.

241404413221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 241404413221 its reverse (122314404142), we get a palindrome (363718817363).

The spelling of 241404413221 in words is "two hundred forty-one billion, four hundred four million, four hundred thirteen thousand, two hundred twenty-one".