171152112201 has 48 divisors (see below), whose sum is σ = 272304361728. Its totient is φ = 95286240000.

The previous prime is 171152112199. The next prime is 171152112227. The reversal of 171152112201 is 102211251171.

It is not a de Polignac number, because 171152112201 - 2¹ = 171152112199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (171152112251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4507371 + ... + 4545183.

It is an arithmetic number, because the mean of its divisors is an integer number (5673007536).

Almost surely, 2^171152112201 is an apocalyptic number.

It is an amenable number.

171152112201 is a deficient number, since it is larger than the sum of its proper divisors (101152249527).

171152112201 is a wasteful number, since it uses less digits than its factorization.

171152112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38622 (or 38615 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 24.

Adding to 171152112201 its reverse (102211251171), we get a palindrome (273363363372).

The spelling of 171152112201 in words is "one hundred seventy-one billion, one hundred fifty-two million, one hundred twelve thousand, two hundred one".