221434324411 has 4 divisors (see below), whose sum is σ = 229069990800. Its totient is φ = 213798658024.

The previous prime is 221434324373. The next prime is 221434324417. The reversal of 221434324411 is 114423434122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 221434324411 - 2¹⁹ = 221433800123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221434324417) 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, 3817833151 + ... + 3817833208.

It is an arithmetic number, because the mean of its divisors is an integer number (57267497700).

Almost surely, 2^221434324411 is an apocalyptic number.

221434324411 is a deficient number, since it is larger than the sum of its proper divisors (7635666389).

221434324411 is an equidigital number, since it uses as much as digits as its factorization.

221434324411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7635666388.

The product of its digits is 18432, while the sum is 31.

Adding to 221434324411 its reverse (114423434122), we get a palindrome (335857758533).

The spelling of 221434324411 in words is "two hundred twenty-one billion, four hundred thirty-four million, three hundred twenty-four thousand, four hundred eleven".