22121424223 has 4 divisors (see below), whose sum is σ = 22135950648. Its totient is φ = 22106897800.

The previous prime is 22121424211. The next prime is 22121424229. The reversal of 22121424223 is 32242412122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32242412122 = 2 ⋅16121206061.

It is a cyclic number.

It is not a de Polignac number, because 22121424223 - 2²⁹ = 21584553311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121424229) 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, 7260928 + ... + 7263973.

It is an arithmetic number, because the mean of its divisors is an integer number (5533987662).

Almost surely, 2^22121424223 is an apocalyptic number.

22121424223 is a deficient number, since it is larger than the sum of its proper divisors (14526425).

22121424223 is a wasteful number, since it uses less digits than its factorization.

22121424223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14526424.

The product of its digits is 3072, while the sum is 25.

Adding to 22121424223 its reverse (32242412122), we get a palindrome (54363836345).

The spelling of 22121424223 in words is "twenty-two billion, one hundred twenty-one million, four hundred twenty-four thousand, two hundred twenty-three".