2021118822 has 12 divisors (see below), whose sum is σ = 4379090820. Its totient is φ = 673706268.

The previous prime is 2021118817. The next prime is 2021118823. The reversal of 2021118822 is 2288111202.

It is a super-3 number, since 3×2021118822³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021118823) 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 5 ways as a sum of consecutive naturals, for example, 56142172 + ... + 56142207.

It is an arithmetic number, because the mean of its divisors is an integer number (364924235).

Almost surely, 2^2021118822 is an apocalyptic number.

2021118822 is an abundant number, since it is smaller than the sum of its proper divisors (2357971998).

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

2021118822 is a wasteful number, since it uses less digits than its factorization.

2021118822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112284387 (or 112284384 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 2021118822 is about 44956.8551168784. The cubic root of 2021118822 is about 1264.3402063707.

The spelling of 2021118822 in words is "two billion, twenty-one million, one hundred eighteen thousand, eight hundred twenty-two".