520222131 has 24 divisors (see below), whose sum is σ = 882803376. Its totient is φ = 291032640.

The previous prime is 520222121. The next prime is 520222141. The reversal of 520222131 is 131222025.

It is an interprime number because it is at equal distance from previous prime (520222121) and next prime (520222141).

It is not a de Polignac number, because 520222131 - 2⁹ = 520221619 is a prime.

It is a super-2 number, since 2×520222131² = 541262131164362322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520222111) 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 23 ways as a sum of consecutive naturals, for example, 200820 + ... + 203393.

It is an arithmetic number, because the mean of its divisors is an integer number (36783474).

Almost surely, 2^520222131 is an apocalyptic number.

520222131 is a deficient number, since it is larger than the sum of its proper divisors (362581245).

520222131 is a wasteful number, since it uses less digits than its factorization.

520222131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404243 (or 404240 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 520222131 is about 22808.3785263223. The cubic root of 520222131 is about 804.2596389857.

Adding to 520222131 its reverse (131222025), we get a palindrome (651444156).

The spelling of 520222131 in words is "five hundred twenty million, two hundred twenty-two thousand, one hundred thirty-one".