222541200 has 180 divisors, whose sum is σ = 882705408. Its totient is φ = 50860800.

The previous prime is 222541181. The next prime is 222541229. The reversal of 222541200 is 2145222.

It is a tau number, because it is divible by the number of its divisors (180).

It is a super-4 number, since 4×222541200⁴ (a number of 34 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 20785 + ... + 29615.

Almost surely, 2^222541200 is an apocalyptic number.

222541200 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 222541200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441352704).

222541200 is an abundant number, since it is smaller than the sum of its proper divisors (660164208).

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

222541200 is a wasteful number, since it uses less digits than its factorization.

222541200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8862 (or 8848 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 222541200 is about 14917.8148533892. The cubic root of 222541200 is about 605.9965362675.

Adding to 222541200 its reverse (2145222), we get a palindrome (224686422).

The spelling of 222541200 in words is "two hundred twenty-two million, five hundred forty-one thousand, two hundred".