221480522 has 16 divisors (see below), whose sum is σ = 352621512. Its totient is φ = 103971840.

The previous prime is 221480503. The next prime is 221480527. The reversal of 221480522 is 225084122.

221480522 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 142110241 + 79370281 = 11921^2 + 8909^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221480491 and 221480500.

It is not an unprimeable number, because it can be changed into a prime (221480527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6578 + ... + 22050.

Almost surely, 2^221480522 is an apocalyptic number.

221480522 is a deficient number, since it is larger than the sum of its proper divisors (131140990).

221480522 is a wasteful number, since it uses less digits than its factorization.

221480522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15913.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 221480522 is about 14882.2216755429. The cubic root of 221480522 is about 605.0322337856.

The spelling of 221480522 in words is "two hundred twenty-one million, four hundred eighty thousand, five hundred twenty-two".