2021766822 has 24 divisors (see below), whose sum is σ = 4382452776. Its totient is φ = 673621056.

The previous prime is 2021766781. The next prime is 2021766827. The reversal of 2021766822 is 2286671202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021766827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18318 + ... + 66174.

It is an arithmetic number, because the mean of its divisors is an integer number (182602199).

Almost surely, 2^2021766822 is an apocalyptic number.

2021766822 is an abundant number, since it is smaller than the sum of its proper divisors (2360685954).

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

2021766822 is a wasteful number, since it uses less digits than its factorization.

2021766822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50212 (or 50209 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 2021766822 is about 44964.0614491173. The cubic root of 2021766822 is about 1264.4753138669.

The spelling of 2021766822 in words is "two billion, twenty-one million, seven hundred sixty-six thousand, eight hundred twenty-two".