4241330421221 has 4 divisors (see below), whose sum is σ = 4244068531500. Its totient is φ = 4238592310944.

The previous prime is 4241330421149. The next prime is 4241330421257. The reversal of 4241330421221 is 1221240331424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1134885396100 + 3106445025121 = 1065310^2 + 1762511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4241330421221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4241330421121) 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, 1369052816 + ... + 1369055913.

It is an arithmetic number, because the mean of its divisors is an integer number (1061017132875).

Almost surely, 2^{4241330421221} is an apocalyptic number.

It is an amenable number.

4241330421221 is a deficient number, since it is larger than the sum of its proper divisors (2738110279).

4241330421221 is a wasteful number, since it uses less digits than its factorization.

4241330421221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738110278.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 4241330421221 its reverse (1221240331424), we get a palindrome (5462570752645).

The spelling of 4241330421221 in words is "four trillion, two hundred forty-one billion, three hundred thirty million, four hundred twenty-one thousand, two hundred twenty-one".