221432144023241 has 2 divisors, whose sum is σ = 221432144023242. Its totient is φ = 221432144023240.

The previous prime is 221432144023201. The next prime is 221432144023403. The reversal of 221432144023241 is 142320441234122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221423209047616 + 8934975625 = 14880296^2 + 94525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221432144023241 is a prime.

It is not a weakly prime, because it can be changed into another prime (221432144023201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110716072011620 + 110716072011621.

It is an arithmetic number, because the mean of its divisors is an integer number (110716072011621).

Almost surely, 2^{221432144023241} is an apocalyptic number.

It is an amenable number.

221432144023241 is a deficient number, since it is larger than the sum of its proper divisors (1).

221432144023241 is an equidigital number, since it uses as much as digits as its factorization.

221432144023241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 221432144023241 its reverse (142320441234122), we get a palindrome (363752585257363).

The spelling of 221432144023241 in words is "two hundred twenty-one trillion, four hundred thirty-two billion, one hundred forty-four million, twenty-three thousand, two hundred forty-one".