222321123 has 12 divisors (see below), whose sum is σ = 329810208. Its totient is φ = 144208080.

The previous prime is 222321107. The next prime is 222321133. The reversal of 222321123 is 321123222.

222321123 is a `hidden beast` number, since 222 + 321 + 123 = 666.

It is not a de Polignac number, because 222321123 - 2⁴ = 222321107 is a prime.

It is a super-2 number, since 2×222321123² = 98853363463962258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222321096 and 222321105.

It is not an unprimeable number, because it can be changed into a prime (222321133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333483 + ... + 334148.

It is an arithmetic number, because the mean of its divisors is an integer number (27484184).

Almost surely, 2^222321123 is an apocalyptic number.

222321123 is a deficient number, since it is larger than the sum of its proper divisors (107489085).

222321123 is a wasteful number, since it uses less digits than its factorization.

222321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667674 (or 667671 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 222321123 is about 14910.4367139263. The cubic root of 222321123 is about 605.7967082702.

Adding to 222321123 its reverse (321123222), we get a palindrome (543444345).

The spelling of 222321123 in words is "two hundred twenty-two million, three hundred twenty-one thousand, one hundred twenty-three".