222170580 has 96 divisors (see below), whose sum is σ = 693463680. Its totient is φ = 59051520.

The previous prime is 222170563. The next prime is 222170581. The reversal of 222170580 is 85071222.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222170581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251740 + ... + 252620.

It is an arithmetic number, because the mean of its divisors is an integer number (7223580).

Almost surely, 2^222170580 is an apocalyptic number.

222170580 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 222170580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346731840).

222170580 is an abundant number, since it is smaller than the sum of its proper divisors (471293100).

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

222170580 is a wasteful number, since it uses less digits than its factorization.

222170580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366 (or 1358 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 222170580 is about 14905.3876165633. The cubic root of 222170580 is about 605.6599405696.

The spelling of 222170580 in words is "two hundred twenty-two million, one hundred seventy thousand, five hundred eighty".