22220123 has 4 divisors (see below), whose sum is σ = 22380120. Its totient is φ = 22060128.

The previous prime is 22220117. The next prime is 22220131. The reversal of 22220123 is 32102222.

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 22220123 - 2¹⁸ = 21957979 is a prime.

It is a super-2 number, since 2×22220123² = 987467732270258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22220098 and 22220107.

It is not an unprimeable number, because it can be changed into a prime (22220113) 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 3 ways as a sum of consecutive naturals, for example, 79790 + ... + 80067.

It is an arithmetic number, because the mean of its divisors is an integer number (5595030).

Almost surely, 2^22220123 is an apocalyptic number.

22220123 is a deficient number, since it is larger than the sum of its proper divisors (159997).

22220123 is a wasteful number, since it uses less digits than its factorization.

22220123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159996.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22220123 is about 4713.8225465115. The cubic root of 22220123 is about 281.1353687255.

Adding to 22220123 its reverse (32102222), we get a palindrome (54322345).

The spelling of 22220123 in words is "twenty-two million, two hundred twenty thousand, one hundred twenty-three".