512121116 has 24 divisors (see below), whose sum is σ = 996288384. Its totient is φ = 228738240.

The previous prime is 512121109. The next prime is 512121143. The reversal of 512121116 is 611121215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157235 + ... + 160458.

It is an arithmetic number, because the mean of its divisors is an integer number (41512016).

Almost surely, 2^512121116 is an apocalyptic number.

It is an amenable number.

512121116 is a deficient number, since it is larger than the sum of its proper divisors (484167268).

512121116 is a wasteful number, since it uses less digits than its factorization.

512121116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317741 (or 317739 counting only the distinct ones).

The product of its digits is 120, while the sum is 20.

The square root of 512121116 is about 22630.0931504932. The cubic root of 512121116 is about 800.0630762766.

Subtracting 512121116 from its reverse (611121215), we obtain a palindrome (99000099).

The spelling of 512121116 in words is "five hundred twelve million, one hundred twenty-one thousand, one hundred sixteen".