5012111721 has 8 divisors (see below), whose sum is σ = 6692244160. Its totient is φ = 3336693552.

The previous prime is 5012111719. The next prime is 5012111747. The reversal of 5012111721 is 1271112105.

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

It is not a de Polignac number, because 5012111721 - 2¹ = 5012111719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5012111711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1176085 + ... + 1180338.

It is an arithmetic number, because the mean of its divisors is an integer number (836530520).

Almost surely, 2^5012111721 is an apocalyptic number.

It is an amenable number.

5012111721 is a deficient number, since it is larger than the sum of its proper divisors (1680132439).

5012111721 is a wasteful number, since it uses less digits than its factorization.

5012111721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357135.

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

The square root of 5012111721 is about 70796.2691178003. The cubic root of 5012111721 is about 1711.3555500897.

Adding to 5012111721 its reverse (1271112105), we get a palindrome (6283223826).

The spelling of 5012111721 in words is "five billion, twelve million, one hundred eleven thousand, seven hundred twenty-one".