221331422434341 has 4 divisors (see below), whose sum is σ = 295108563245792. Its totient is φ = 147554281622892.

The previous prime is 221331422434319. The next prime is 221331422434373. The reversal of 221331422434341 is 143434224133122.

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 not a de Polignac number, because 221331422434341 - 2²⁶ = 221331355325477 is a prime.

It is a super-2 number, since 2×221331422434341² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221331422434341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221331422434541) 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, 36888570405721 + ... + 36888570405726.

It is an arithmetic number, because the mean of its divisors is an integer number (73777140811448).

Almost surely, 2^{221331422434341} is an apocalyptic number.

It is an amenable number.

221331422434341 is a deficient number, since it is larger than the sum of its proper divisors (73777140811451).

221331422434341 is an equidigital number, since it uses as much as digits as its factorization.

221331422434341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73777140811450.

The product of its digits is 331776, while the sum is 39.

Adding to 221331422434341 its reverse (143434224133122), we get a palindrome (364765646567463).

The spelling of 221331422434341 in words is "two hundred twenty-one trillion, three hundred thirty-one billion, four hundred twenty-two million, four hundred thirty-four thousand, three hundred forty-one".