2021312116 has 12 divisors (see below), whose sum is σ = 3537641632. Its totient is φ = 1010557368.

The previous prime is 2021312107. The next prime is 2021312149. The reversal of 2021312116 is 6112131202.

It is a junction number, because it is equal to n+sod(n) for n = 2021312093 and 2021312102.

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, 40591 + ... + 75433.

Almost surely, 2^2021312116 is an apocalyptic number.

It is an amenable number.

2021312116 is a deficient number, since it is larger than the sum of its proper divisors (1516329516).

2021312116 is a wasteful number, since it uses less digits than its factorization.

2021312116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49350 (or 49348 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2021312116 is about 44959.0048377408. The cubic root of 2021312116 is about 1264.3805110414.

Adding to 2021312116 its reverse (6112131202), we get a palindrome (8133443318).

The spelling of 2021312116 in words is "two billion, twenty-one million, three hundred twelve thousand, one hundred sixteen".