221434014443 has 2 divisors, whose sum is σ = 221434014444. Its totient is φ = 221434014442.

The previous prime is 221434014421. The next prime is 221434014467. The reversal of 221434014443 is 344410434122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221434014443 is a prime.

It is not a weakly prime, because it can be changed into another prime (221434014493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110717007221 + 110717007222.

It is an arithmetic number, because the mean of its divisors is an integer number (110717007222).

Almost surely, 2^221434014443 is an apocalyptic number.

221434014443 is a deficient number, since it is larger than the sum of its proper divisors (1).

221434014443 is an equidigital number, since it uses as much as digits as its factorization.

221434014443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 221434014443 its reverse (344410434122), we get a palindrome (565844448565).

The spelling of 221434014443 in words is "two hundred twenty-one billion, four hundred thirty-four million, fourteen thousand, four hundred forty-three".