22145025223 has 4 divisors (see below), whose sum is σ = 22145409400. Its totient is φ = 22144641048.

The previous prime is 22145025187. The next prime is 22145025233. The reversal of 22145025223 is 32252054122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32252054122 = 2 ⋅16126027061.

It is a cyclic number.

It is not a de Polignac number, because 22145025223 - 2¹³ = 22145017031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22145025191 and 22145025200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22145025233) 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, 86148 + ... + 227401.

It is an arithmetic number, because the mean of its divisors is an integer number (5536352350).

Almost surely, 2^22145025223 is an apocalyptic number.

22145025223 is a deficient number, since it is larger than the sum of its proper divisors (384177).

22145025223 is an equidigital number, since it uses as much as digits as its factorization.

22145025223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384176.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 22145025223 its reverse (32252054122), we get a palindrome (54397079345).

The spelling of 22145025223 in words is "twenty-two billion, one hundred forty-five million, twenty-five thousand, two hundred twenty-three".