2171051006217 has 8 divisors (see below), whose sum is σ = 2923395414720. Its totient is φ = 1433036967600.

The previous prime is 2171051006197. The next prime is 2171051006221. The reversal of 2171051006217 is 7126001501712.

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

It is not a de Polignac number, because 2171051006217 - 2¹² = 2171051002121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2171001006217) 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 7 ways as a sum of consecutive naturals, for example, 3582592117 + ... + 3582592722.

It is an arithmetic number, because the mean of its divisors is an integer number (365424426840).

Almost surely, 2^{2171051006217} is an apocalyptic number.

It is an amenable number.

2171051006217 is a deficient number, since it is larger than the sum of its proper divisors (752344408503).

2171051006217 is a wasteful number, since it uses less digits than its factorization.

2171051006217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7165184943.

The product of its (nonzero) digits is 5880, while the sum is 33.

Adding to 2171051006217 its reverse (7126001501712), we get a palindrome (9297052507929).

The spelling of 2171051006217 in words is "two trillion, one hundred seventy-one billion, fifty-one million, six thousand, two hundred seventeen".