2516321212 has 12 divisors (see below), whose sum is σ = 4545612736. Its totient is φ = 1217574720.

The previous prime is 2516321179. The next prime is 2516321237. The reversal of 2516321212 is 2121236152.

It is a super-2 number, since 2×2516321212² = 12663744883922297888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10146333 + ... + 10146580.

Almost surely, 2^2516321212 is an apocalyptic number.

It is an amenable number.

2516321212 is a deficient number, since it is larger than the sum of its proper divisors (2029291524).

2516321212 is a wasteful number, since it uses less digits than its factorization.

2516321212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20292948 (or 20292946 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 2516321212 is about 50162.9466040423. The cubic root of 2516321212 is about 1360.1559098940.

Adding to 2516321212 its reverse (2121236152), we get a palindrome (4637557364).

The spelling of 2516321212 in words is "two billion, five hundred sixteen million, three hundred twenty-one thousand, two hundred twelve".