5171212011 has 24 divisors (see below), whose sum is σ = 8023385664. Its totient is φ = 2953972560.

The previous prime is 5171212009. The next prime is 5171212051. The reversal of 5171212011 is 1102121715.

It is not a de Polignac number, because 5171212011 - 2¹ = 5171212009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (5171212051) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 756736 + ... + 763538.

It is an arithmetic number, because the mean of its divisors is an integer number (334307736).

Almost surely, 2^5171212011 is an apocalyptic number.

5171212011 is a deficient number, since it is larger than the sum of its proper divisors (2852173653).

5171212011 is a wasteful number, since it uses less digits than its factorization.

5171212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11991 (or 11984 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 21.

The square root of 5171212011 is about 71911.1396864213. The cubic root of 5171212011 is about 1729.2752052002.

Adding to 5171212011 its reverse (1102121715), we get a palindrome (6273333726).

The spelling of 5171212011 in words is "five billion, one hundred seventy-one million, two hundred twelve thousand, eleven".