221525159223271 has 2 divisors, whose sum is σ = 221525159223272. Its totient is φ = 221525159223270.

The previous prime is 221525159223257. The next prime is 221525159223293. The reversal of 221525159223271 is 172322951525122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221525159223271 - 2¹³ = 221525159215079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221525159223371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110762579611635 + 110762579611636.

It is an arithmetic number, because the mean of its divisors is an integer number (110762579611636).

Almost surely, 2^{221525159223271} is an apocalyptic number.

221525159223271 is a deficient number, since it is larger than the sum of its proper divisors (1).

221525159223271 is an equidigital number, since it uses as much as digits as its factorization.

221525159223271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512000, while the sum is 49.

The spelling of 221525159223271 in words is "two hundred twenty-one trillion, five hundred twenty-five billion, one hundred fifty-nine million, two hundred twenty-three thousand, two hundred seventy-one".