5122213521 has 8 divisors (see below), whose sum is σ = 6831892320. Its totient is φ = 3413671872.

The previous prime is 5122213519. The next prime is 5122213541. The reversal of 5122213521 is 1253122215.

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

It is not a de Polignac number, because 5122213521 - 2¹ = 5122213519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5122213491 and 5122213500.

It is not an unprimeable number, because it can be changed into a prime (5122213541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273720 + ... + 291833.

It is an arithmetic number, because the mean of its divisors is an integer number (853986540).

Almost surely, 2^5122213521 is an apocalyptic number.

It is an amenable number.

5122213521 is a deficient number, since it is larger than the sum of its proper divisors (1709678799).

5122213521 is a wasteful number, since it uses less digits than its factorization.

5122213521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568575.

The product of its digits is 1200, while the sum is 24.

The square root of 5122213521 is about 71569.6410568056. The cubic root of 5122213521 is about 1723.7960957418.

Adding to 5122213521 its reverse (1253122215), we get a palindrome (6375335736).

The spelling of 5122213521 in words is "five billion, one hundred twenty-two million, two hundred thirteen thousand, five hundred twenty-one".