221424321341 has 4 divisors (see below), whose sum is σ = 225177276000. Its totient is φ = 217671366684.

The previous prime is 221424321319. The next prime is 221424321373. The reversal of 221424321341 is 143123424122.

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 221424321341 - 2¹⁴ = 221424304957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221424321541) 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, 1876477241 + ... + 1876477358.

It is an arithmetic number, because the mean of its divisors is an integer number (56294319000).

Almost surely, 2^221424321341 is an apocalyptic number.

It is an amenable number.

221424321341 is a deficient number, since it is larger than the sum of its proper divisors (3752954659).

221424321341 is an equidigital number, since it uses as much as digits as its factorization.

221424321341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3752954658.

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

Adding to 221424321341 its reverse (143123424122), we get a palindrome (364547745463).

The spelling of 221424321341 in words is "two hundred twenty-one billion, four hundred twenty-four million, three hundred twenty-one thousand, three hundred forty-one".