222445225 has 12 divisors (see below), whose sum is σ = 285344460. Its totient is φ = 171819200.

The previous prime is 222445193. The next prime is 222445231. The reversal of 222445225 is 522544222.

222445225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 226576 + 222218649 = 476^2 + 14907^2 .

It is not a de Polignac number, because 222445225 - 2⁵ = 222445193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222445193 and 222445202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152686 + ... + 154135.

It is an arithmetic number, because the mean of its divisors is an integer number (23778705).

Almost surely, 2^222445225 is an apocalyptic number.

222445225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222445225 is a deficient number, since it is larger than the sum of its proper divisors (62899235).

222445225 is a wasteful number, since it uses less digits than its factorization.

222445225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306860 (or 306855 counting only the distinct ones).

The product of its digits is 12800, while the sum is 28.

The square root of 222445225 is about 14914.5977149905. The cubic root of 222445225 is about 605.9094080106.

Adding to 222445225 its reverse (522544222), we get a palindrome (744989447).

The spelling of 222445225 in words is "two hundred twenty-two million, four hundred forty-five thousand, two hundred twenty-five".