222004220 has 48 divisors (see below), whose sum is σ = 479001600. Its totient is φ = 86399040.

The previous prime is 222004187. The next prime is 222004249. The reversal of 222004220 is 22400222.

It is a junction number, because it is equal to n+sod(n) for n = 222004195 and 222004204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111191 + ... + 113169.

It is an arithmetic number, because the mean of its divisors is an integer number (9979200).

Almost surely, 2^222004220 is an apocalyptic number.

222004220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222004220 is an abundant number, since it is smaller than the sum of its proper divisors (256997380).

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

222004220 is a wasteful number, since it uses less digits than its factorization.

222004220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138 (or 2136 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 222004220 is about 14899.8060390060. The cubic root of 222004220 is about 605.5087313095.

Adding to 222004220 its reverse (22400222), we get a palindrome (244404442).

The spelling of 222004220 in words is "two hundred twenty-two million, four thousand, two hundred twenty".