222200000 has 168 divisors, whose sum is σ = 607179888. Its totient is φ = 80000000.

The previous prime is 222199993. The next prime is 222200023. The reversal of 222200000 is 2222.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2199950 + ... + 2200050.

It is an arithmetic number, because the mean of its divisors is an integer number (3614166).

Almost surely, 2^222200000 is an apocalyptic number.

222200000 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 222200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303589944).

222200000 is an abundant number, since it is smaller than the sum of its proper divisors (384979888).

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

222200000 is an equidigital number, since it uses as much as digits as its factorization.

222200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 222200000 is about 14906.3744753713. The cubic root of 222200000 is about 605.6866733755.

Adding to 222200000 its reverse (2222), we get a palindrome (222202222).

222200000 divided by its reverse (2222) gives a 5-th power (100000 = 10⁵).

It can be divided in two parts, 22 and 2200000, that added together give a palindrome (2200022).

The spelling of 222200000 in words is "two hundred twenty-two million, two hundred thousand".