172225324101 has 16 divisors (see below), whose sum is σ = 239672986560. Its totient is φ = 109902948480.

The previous prime is 172225324097. The next prime is 172225324121. The reversal of 172225324101 is 101423522271.

It is not a de Polignac number, because 172225324101 - 2² = 172225324097 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172225324121) 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 15 ways as a sum of consecutive naturals, for example, 13202971 + ... + 13216008.

It is an arithmetic number, because the mean of its divisors is an integer number (14979561660).

Almost surely, 2^172225324101 is an apocalyptic number.

It is an amenable number.

172225324101 is a deficient number, since it is larger than the sum of its proper divisors (67447662459).

172225324101 is a wasteful number, since it uses less digits than its factorization.

172225324101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26419076.

The product of its (nonzero) digits is 6720, while the sum is 30.

Adding to 172225324101 its reverse (101423522271), we get a palindrome (273648846372).

The spelling of 172225324101 in words is "one hundred seventy-two billion, two hundred twenty-five million, three hundred twenty-four thousand, one hundred one".