221482160 has 40 divisors (see below), whose sum is σ = 515907456. Its totient is φ = 88427520.

The previous prime is 221482153. The next prime is 221482169. The reversal of 221482160 is 61284122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (221482169) 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, 46280 + ... + 50840.

Almost surely, 2^221482160 is an apocalyptic number.

221482160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221482160 is an abundant number, since it is smaller than the sum of its proper divisors (294425296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221482160 is a wasteful number, since it uses less digits than its factorization.

221482160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5181 (or 5175 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 221482160 is about 14882.2767075471. The cubic root of 221482160 is about 605.0337253244.

The spelling of 221482160 in words is "two hundred twenty-one million, four hundred eighty-two thousand, one hundred sixty".