2021218296 has 16 divisors (see below), whose sum is σ = 5053045800. Its totient is φ = 673739424.

The previous prime is 2021218291. The next prime is 2021218327. The reversal of 2021218296 is 6928121202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021218291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42108691 + ... + 42108738.

Almost surely, 2^2021218296 is an apocalyptic number.

It is an amenable number.

2021218296 is an abundant number, since it is smaller than the sum of its proper divisors (3031827504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021218296 is a wasteful number, since it uses less digits than its factorization.

2021218296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84217438 (or 84217434 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 2021218296 is about 44957.9614306521. The cubic root of 2021218296 is about 1264.3609484985.

Adding to 2021218296 its reverse (6928121202), we get a palindrome (8949339498).

The spelling of 2021218296 in words is "two billion, twenty-one million, two hundred eighteen thousand, two hundred ninety-six".