5122171001571 has 16 divisors (see below), whose sum is σ = 7787554102944. Its totient is φ = 2966687276544.

The previous prime is 5122171001567. The next prime is 5122171001573. The reversal of 5122171001571 is 1751001712215.

It is not a de Polignac number, because 5122171001571 - 2² = 5122171001567 is a prime.

It is a super-2 number, since 2×5122171001571² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5122171001573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3862873396 + ... + 3862874721.

It is an arithmetic number, because the mean of its divisors is an integer number (486722131434).

Almost surely, 2^{5122171001571} is an apocalyptic number.

5122171001571 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

5122171001571 is a deficient number, since it is larger than the sum of its proper divisors (2665383101373).

5122171001571 is a wasteful number, since it uses less digits than its factorization.

5122171001571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7725748150.

The product of its (nonzero) digits is 4900, while the sum is 33.

Adding to 5122171001571 its reverse (1751001712215), we get a palindrome (6873172713786).

The spelling of 5122171001571 in words is "five trillion, one hundred twenty-two billion, one hundred seventy-one million, one thousand, five hundred seventy-one".