22000123 has 4 divisors (see below), whose sum is σ = 22218048. Its totient is φ = 21782200.

The previous prime is 22000109. The next prime is 22000127. The reversal of 22000123 is 32100022.

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

It is a cyclic number.

It is not a de Polignac number, because 22000123 - 2¹⁷ = 21869051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22000127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108811 + ... + 109012.

It is an arithmetic number, because the mean of its divisors is an integer number (5554512).

Almost surely, 2^22000123 is an apocalyptic number.

22000123 is a deficient number, since it is larger than the sum of its proper divisors (217925).

22000123 is a wasteful number, since it uses less digits than its factorization.

22000123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217924.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 22000123 is about 4690.4288716492. The cubic root of 22000123 is about 280.2044552628.

Adding to 22000123 its reverse (32100022), we get a palindrome (54100145).

The spelling of 22000123 in words is "twenty-two million, one hundred twenty-three", and thus it is an aban number.