222123004 has 24 divisors (see below), whose sum is σ = 393170400. Its totient is φ = 109796544.

The previous prime is 222123001. The next prime is 222123043. The reversal of 222123004 is 400321222.

222123004 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×222123004³ (a number of 26 digits) contains 333 as substring.

222123004 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222123001) 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, 136902 + ... + 138514.

It is an arithmetic number, because the mean of its divisors is an integer number (16382100).

Almost surely, 2^222123004 is an apocalyptic number.

It is an amenable number.

222123004 is a deficient number, since it is larger than the sum of its proper divisors (171047396).

222123004 is a wasteful number, since it uses less digits than its factorization.

222123004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989 (or 1987 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 222123004 is about 14903.7915981135. The cubic root of 222123004 is about 605.6167051205.

Adding to 222123004 its reverse (400321222), we get a palindrome (622444226).

The spelling of 222123004 in words is "two hundred twenty-two million, one hundred twenty-three thousand, four".