222126530 has 32 divisors (see below), whose sum is σ = 421666560. Its totient is φ = 84015360.

The previous prime is 222126529. The next prime is 222126547. The reversal of 222126530 is 35621222.

222126530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 222126496 and 222126505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166727 + ... + 168053.

It is an arithmetic number, because the mean of its divisors is an integer number (13177080).

Almost surely, 2^222126530 is an apocalyptic number.

222126530 is a deficient number, since it is larger than the sum of its proper divisors (199540030).

222126530 is a wasteful number, since it uses less digits than its factorization.

222126530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 222126530 is about 14903.9098896900. The cubic root of 222126530 is about 605.6199096411.

Adding to 222126530 its reverse (35621222), we get a palindrome (257747752).

The spelling of 222126530 in words is "two hundred twenty-two million, one hundred twenty-six thousand, five hundred thirty".