516220213211 has 4 divisors (see below), whose sum is σ = 516413051232. Its totient is φ = 516027375192.

The previous prime is 516220213207. The next prime is 516220213213. The reversal of 516220213211 is 112312022615.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 516220213211 - 2² = 516220213207 is a prime.

It is a super-2 number, since 2×516220213211² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516220213213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96414995 + ... + 96420348.

It is an arithmetic number, because the mean of its divisors is an integer number (129103262808).

Almost surely, 2^516220213211 is an apocalyptic number.

516220213211 is a deficient number, since it is larger than the sum of its proper divisors (192838021).

516220213211 is a wasteful number, since it uses less digits than its factorization.

516220213211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192838020.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 516220213211 its reverse (112312022615), we get a palindrome (628532235826).

The spelling of 516220213211 in words is "five hundred sixteen billion, two hundred twenty million, two hundred thirteen thousand, two hundred eleven".