222273228 has 24 divisors (see below), whose sum is σ = 524467440. Its totient is φ = 73258240.

The previous prime is 222273223. The next prime is 222273263. The reversal of 222273228 is 822372222.

It is a junction number, because it is equal to n+sod(n) for n = 222273195 and 222273204.

It is not an unprimeable number, because it can be changed into a prime (222273223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102993 + ... + 105128.

It is an arithmetic number, because the mean of its divisors is an integer number (21852810).

Almost surely, 2^222273228 is an apocalyptic number.

It is an amenable number.

222273228 is an abundant number, since it is smaller than the sum of its proper divisors (302194212).

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

222273228 is a wasteful number, since it uses less digits than its factorization.

222273228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208217 (or 208215 counting only the distinct ones).

The product of its digits is 10752, while the sum is 30.

The square root of 222273228 is about 14908.8305376378. The cubic root of 222273228 is about 605.7532025569.

The spelling of 222273228 in words is "two hundred twenty-two million, two hundred seventy-three thousand, two hundred twenty-eight".