100522172005 has 8 divisors (see below), whose sum is σ = 120632563224. Its totient is φ = 80413766400.

The previous prime is 100522171921. The next prime is 100522172017. The reversal of 100522172005 is 500271225001.

It can be written as a sum of positive squares in 4 ways, for example, as 78180964 + 100443991041 = 8842^2 + 316929^2 .

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

It is not a de Polignac number, because 100522172005 - 2²³ = 100513783397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382656 + ... + 589465.

It is an arithmetic number, because the mean of its divisors is an integer number (15079070403).

Almost surely, 2^100522172005 is an apocalyptic number.

It is an amenable number.

100522172005 is a deficient number, since it is larger than the sum of its proper divisors (20110391219).

100522172005 is an equidigital number, since it uses as much as digits as its factorization.

100522172005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992807.

The product of its (nonzero) digits is 1400, while the sum is 25.

Adding to 100522172005 its reverse (500271225001), we get a palindrome (600793397006).

The spelling of 100522172005 in words is "one hundred billion, five hundred twenty-two million, one hundred seventy-two thousand, five".