222180 has 72 divisors (see below), whose sum is σ = 743232. Its totient is φ = 48576.

The previous prime is 222163. The next prime is 222193. The reversal of 222180 is 81222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 222180.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9649 + ... + 9671.

2²²²¹⁸⁰ is an apocalyptic number.

222180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371616).

222180 is an abundant number, since it is smaller than the sum of its proper divisors (521052).

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

222180 is a wasteful number, since it uses less digits than its factorization.

222180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 222180 is about 471.3597352341. The cubic root of 222180 is about 60.5668500413.

The spelling of 222180 in words is "two hundred twenty-two thousand, one hundred eighty".