222001228 has 12 divisors (see below), whose sum is σ = 389107152. Its totient is φ = 110827760.

The previous prime is 222001223. The next prime is 222001237. The reversal of 222001228 is 822100222.

It is not an unprimeable number, because it can be changed into a prime (222001223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40303 + ... + 45478.

It is an arithmetic number, because the mean of its divisors is an integer number (32425596).

Almost surely, 2^222001228 is an apocalyptic number.

It is an amenable number.

222001228 is a deficient number, since it is larger than the sum of its proper divisors (167105924).

222001228 is a wasteful number, since it uses less digits than its factorization.

222001228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86432 (or 86430 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 222001228 is about 14899.7056346761. The cubic root of 222001228 is about 605.5060111055.

The spelling of 222001228 in words is "two hundred twenty-two million, one thousand, two hundred twenty-eight".