222145234 has 8 divisors (see below), whose sum is σ = 333306828. Its totient is φ = 111042960.

The previous prime is 222145223. The next prime is 222145243. The reversal of 222145234 is 432541222.

It can be written as a sum of positive squares in 2 ways, for example, as 211615209 + 10530025 = 14547^2 + 3245^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 222145199 and 222145208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3837 + ... + 21424.

Almost surely, 2^222145234 is an apocalyptic number.

222145234 is a deficient number, since it is larger than the sum of its proper divisors (111161594).

222145234 is a wasteful number, since it uses less digits than its factorization.

222145234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29660.

The product of its digits is 3840, while the sum is 25.

The square root of 222145234 is about 14904.5373628302. The cubic root of 222145234 is about 605.6369077560.

Adding to 222145234 its reverse (432541222), we get a palindrome (654686456).

The spelling of 222145234 in words is "two hundred twenty-two million, one hundred forty-five thousand, two hundred thirty-four".