22212023123 has 4 divisors (see below), whose sum is σ = 22212338688. Its totient is φ = 22211707560.

The previous prime is 22212023089. The next prime is 22212023129. The reversal of 22212023123 is 32132021222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22212023123 - 2¹⁶ = 22211957587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22212023095 and 22212023104.

It is not an unprimeable number, because it can be changed into a prime (22212023129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1193 + ... + 210773.

It is an arithmetic number, because the mean of its divisors is an integer number (5553084672).

Almost surely, 2^22212023123 is an apocalyptic number.

22212023123 is a deficient number, since it is larger than the sum of its proper divisors (315565).

22212023123 is a wasteful number, since it uses less digits than its factorization.

22212023123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315564.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22212023123 its reverse (32132021222), we get a palindrome (54344044345).

The spelling of 22212023123 in words is "twenty-two billion, two hundred twelve million, twenty-three thousand, one hundred twenty-three".