2021213344 has 48 divisors (see below), whose sum is σ = 4049099712. Its totient is φ = 993005568.

The previous prime is 2021213339. The next prime is 2021213357. The reversal of 2021213344 is 4433121202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510637 + ... + 514579.

It is an arithmetic number, because the mean of its divisors is an integer number (84356244).

Almost surely, 2^2021213344 is an apocalyptic number.

It is an amenable number.

2021213344 is an abundant number, since it is smaller than the sum of its proper divisors (2027886368).

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

2021213344 is a wasteful number, since it uses less digits than its factorization.

2021213344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229 (or 4221 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2021213344 is about 44957.9063569468. The cubic root of 2021213344 is about 1264.3599159330.

Adding to 2021213344 its reverse (4433121202), we get a palindrome (6454334546).

The spelling of 2021213344 in words is "two billion, twenty-one million, two hundred thirteen thousand, three hundred forty-four".