221180 has 12 divisors (see below), whose sum is σ = 464520. Its totient is φ = 88464.

The previous prime is 221173. The next prime is 221197. The reversal of 221180 is 81122.

221180 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5510 + ... + 5549.

It is an arithmetic number, because the mean of its divisors is an integer number (38710).

2²²¹¹⁸⁰ is an apocalyptic number.

221180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221180 is an abundant number, since it is smaller than the sum of its proper divisors (243340).

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

221180 is a wasteful number, since it uses less digits than its factorization.

221180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11068 (or 11066 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 221180 is about 470.2977780088. The cubic root of 221180 is about 60.4758458323.

The spelling of 221180 in words is "two hundred twenty-one thousand, one hundred eighty".