221413301441273 has 2 divisors, whose sum is σ = 221413301441274. Its totient is φ = 221413301441272.

The previous prime is 221413301441209. The next prime is 221413301441309. The reversal of 221413301441273 is 372144103314122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111084264281104 + 110329037160169 = 10539652^2 + 10503763^2 .

It is a cyclic number.

It is not a de Polignac number, because 221413301441273 - 2⁶ = 221413301441209 is a prime.

It is not a weakly prime, because it can be changed into another prime (221413301741273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110706650720636 + 110706650720637.

It is an arithmetic number, because the mean of its divisors is an integer number (110706650720637).

Almost surely, 2^{221413301441273} is an apocalyptic number.

It is an amenable number.

221413301441273 is a deficient number, since it is larger than the sum of its proper divisors (1).

221413301441273 is an equidigital number, since it uses as much as digits as its factorization.

221413301441273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 38.

Adding to 221413301441273 its reverse (372144103314122), we get a palindrome (593557404755395).

The spelling of 221413301441273 in words is "two hundred twenty-one trillion, four hundred thirteen billion, three hundred one million, four hundred forty-one thousand, two hundred seventy-three".