171240212000 has 192 divisors, whose sum is σ = 494294306688. Its totient is φ = 57479040000.

The previous prime is 171240211981. The next prime is 171240212023. The reversal of 171240212000 is 212042171.

171240212000 is digitally balanced in base 2, 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 (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 422315 + ... + 721685.

It is an arithmetic number, because the mean of its divisors is an integer number (2574449514).

Almost surely, 2^171240212000 is an apocalyptic number.

171240212000 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 171240212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247147153344).

171240212000 is an abundant number, since it is smaller than the sum of its proper divisors (323054094688).

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

171240212000 is a wasteful number, since it uses less digits than its factorization.

171240212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299420 (or 299402 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 171240212000 its reverse (212042171), we get a palindrome (171452254171).

The spelling of 171240212000 in words is "one hundred seventy-one billion, two hundred forty million, two hundred twelve thousand".