22123042 has 4 divisors (see below), whose sum is σ = 33184566. Its totient is φ = 11061520.

The previous prime is 22123021. The next prime is 22123043. The reversal of 22123042 is 24032122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17547721 + 4575321 = 4189^2 + 2139^2 .

It is not an unprimeable number, because it can be changed into a prime (22123043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530759 + ... + 5530762.

Almost surely, 2^22123042 is an apocalyptic number.

22123042 is a deficient number, since it is larger than the sum of its proper divisors (11061524).

22123042 is a wasteful number, since it uses less digits than its factorization.

22123042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11061523.

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

The square root of 22123042 is about 4703.5137928999. The cubic root of 22123042 is about 280.7253387783.

Adding to 22123042 its reverse (24032122), we get a palindrome (46155164).

The spelling of 22123042 in words is "twenty-two million, one hundred twenty-three thousand, forty-two".