222235216 has 40 divisors (see below), whose sum is σ = 498341120. Its totient is φ = 94034304.

The previous prime is 222235199. The next prime is 222235217. The reversal of 222235216 is 612532222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222235217) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3711 + ... + 21406.

It is an arithmetic number, because the mean of its divisors is an integer number (12458528).

Almost surely, 2^222235216 is an apocalyptic number.

It is an amenable number.

222235216 is an abundant number, since it is smaller than the sum of its proper divisors (276105904).

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

222235216 is a wasteful number, since it uses less digits than its factorization.

222235216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25211 (or 25205 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 222235216 is about 14907.5556681838. Note that the first 3 decimals coincide. The cubic root of 222235216 is about 605.7186696779.

Adding to 222235216 its reverse (612532222), we get a palindrome (834767438).

The spelling of 222235216 in words is "two hundred twenty-two million, two hundred thirty-five thousand, two hundred sixteen".