172132222300 has 72 divisors (see below), whose sum is σ = 377143517520. Its totient is φ = 68186880000.

The previous prime is 172132222279. The next prime is 172132222303. The reversal of 172132222300 is 3222231271.

172132222300 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172132222303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43020300 + ... + 43024300.

It is an arithmetic number, because the mean of its divisors is an integer number (5238104410).

Almost surely, 2^172132222300 is an apocalyptic number.

172132222300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172132222300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188571758760).

172132222300 is an abundant number, since it is smaller than the sum of its proper divisors (205011295220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172132222300 is a wasteful number, since it uses less digits than its factorization.

172132222300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8071 (or 8064 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 172132222300 its reverse (3222231271), we get a palindrome (175354453571).

The spelling of 172132222300 in words is "one hundred seventy-two billion, one hundred thirty-two million, two hundred twenty-two thousand, three hundred".