221310132271 has 2 divisors, whose sum is σ = 221310132272. Its totient is φ = 221310132270.

The previous prime is 221310132209. The next prime is 221310132287. The reversal of 221310132271 is 172231013122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221310132271 - 2²¹ = 221308035119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221310133271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110655066135 + 110655066136.

It is an arithmetic number, because the mean of its divisors is an integer number (110655066136).

Almost surely, 2^221310132271 is an apocalyptic number.

221310132271 is a deficient number, since it is larger than the sum of its proper divisors (1).

221310132271 is an equidigital number, since it uses as much as digits as its factorization.

221310132271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 221310132271 its reverse (172231013122), we get a palindrome (393541145393).

The spelling of 221310132271 in words is "two hundred twenty-one billion, three hundred ten million, one hundred thirty-two thousand, two hundred seventy-one".