5215121205 has 32 divisors (see below), whose sum is σ = 9730848000. Its totient is φ = 2384053056.

The previous prime is 5215121203. The next prime is 5215121207. The reversal of 5215121205 is 5021215125.

It is an interprime number because it is at equal distance from previous prime (5215121203) and next prime (5215121207).

It is not a de Polignac number, because 5215121205 - 2¹ = 5215121203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5215121203) 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 31 ways as a sum of consecutive naturals, for example, 501670 + ... + 511959.

It is an arithmetic number, because the mean of its divisors is an integer number (304089000).

Almost surely, 2^5215121205 is an apocalyptic number.

It is an amenable number.

5215121205 is a deficient number, since it is larger than the sum of its proper divisors (4515726795).

5215121205 is a wasteful number, since it uses less digits than its factorization.

5215121205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013658 (or 1013644 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 5215121205 is about 72215.7960906061. The cubic root of 5215121205 is about 1734.1558905542.

The spelling of 5215121205 in words is "five billion, two hundred fifteen million, one hundred twenty-one thousand, two hundred five".