221024312031241 has 2 divisors, whose sum is σ = 221024312031242. Its totient is φ = 221024312031240.

The previous prime is 221024312031157. The next prime is 221024312031307. The reversal of 221024312031241 is 142130213420122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202037682288016 + 18986629743225 = 14213996^2 + 4357365^2 .

It is a cyclic number.

It is not a de Polignac number, because 221024312031241 - 2⁹ = 221024312030729 is a prime.

It is not a weakly prime, because it can be changed into another prime (221024312031541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110512156015620 + 110512156015621.

It is an arithmetic number, because the mean of its divisors is an integer number (110512156015621).

Almost surely, 2^{221024312031241} is an apocalyptic number.

It is an amenable number.

221024312031241 is a deficient number, since it is larger than the sum of its proper divisors (1).

221024312031241 is an equidigital number, since it uses as much as digits as its factorization.

221024312031241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 221024312031241 its reverse (142130213420122), we get a palindrome (363154525451363).

The spelling of 221024312031241 in words is "two hundred twenty-one trillion, twenty-four billion, three hundred twelve million, thirty-one thousand, two hundred forty-one".