221140343444243 has 2 divisors, whose sum is σ = 221140343444244. Its totient is φ = 221140343444242.

The previous prime is 221140343444201. The next prime is 221140343444261. The reversal of 221140343444243 is 342444343041122.

221140343444243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221140343444243 - 2³⁴ = 221123163575059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221140343444243.

It is not a weakly prime, because it can be changed into another prime (221140343434243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110570171722121 + 110570171722122.

It is an arithmetic number, because the mean of its divisors is an integer number (110570171722122).

Almost surely, 2^{221140343444243} is an apocalyptic number.

221140343444243 is a deficient number, since it is larger than the sum of its proper divisors (1).

221140343444243 is an equidigital number, since it uses as much as digits as its factorization.

221140343444243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 884736, while the sum is 41.

Adding to 221140343444243 its reverse (342444343041122), we get a palindrome (563584686485365).

The spelling of 221140343444243 in words is "two hundred twenty-one trillion, one hundred forty billion, three hundred forty-three million, four hundred forty-four thousand, two hundred forty-three".