225122172423 has 8 divisors (see below), whose sum is σ = 300380253936. Its totient is φ = 149972769600.

The previous prime is 225122172409. The next prime is 225122172439. The reversal of 225122172423 is 324271221522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225122172423 - 2¹³ = 225122164231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225122172463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27164838 + ... + 27173123.

It is an arithmetic number, because the mean of its divisors is an integer number (37547531742).

Almost surely, 2^225122172423 is an apocalyptic number.

225122172423 is a deficient number, since it is larger than the sum of its proper divisors (75258081513).

225122172423 is a wasteful number, since it uses less digits than its factorization.

225122172423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54339345.

The product of its digits is 26880, while the sum is 33.

Adding to 225122172423 its reverse (324271221522), we get a palindrome (549393393945).

The spelling of 225122172423 in words is "two hundred twenty-five billion, one hundred twenty-two million, one hundred seventy-two thousand, four hundred twenty-three".