222355856 has 10 divisors (see below), whose sum is σ = 430814502. Its totient is φ = 111177920.

The previous prime is 222355853. The next prime is 222355873. The reversal of 222355856 is 658553222.

It can be written as a sum of positive squares in only one way, i.e., 164352400 + 58003456 = 12820^2 + 7616^2 .

It is not an unprimeable number, because it can be changed into a prime (222355853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6948605 + ... + 6948636.

Almost surely, 2^222355856 is an apocalyptic number.

It is an amenable number.

222355856 is a deficient number, since it is larger than the sum of its proper divisors (208458646).

222355856 is a wasteful number, since it uses less digits than its factorization.

222355856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13897249 (or 13897243 counting only the distinct ones).

The product of its digits is 144000, while the sum is 38.

The square root of 222355856 is about 14911.6013895222. The cubic root of 222355856 is about 605.8282542927.

The spelling of 222355856 in words is "two hundred twenty-two million, three hundred fifty-five thousand, eight hundred fifty-six".