19821822222 has 8 divisors (see below), whose sum is σ = 39643644456. Its totient is φ = 6607274072.

The previous prime is 19821822221. The next prime is 19821822227. The reversal of 19821822222 is 22222812891.

It is a sphenic number, since it is the product of 3 distinct primes.

19821822222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19821822221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1651818513 + ... + 1651818524.

It is an arithmetic number, because the mean of its divisors is an integer number (4955455557).

Almost surely, 2^19821822222 is an apocalyptic number.

19821822222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19821822222 is a wasteful number, since it uses less digits than its factorization.

19821822222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3303637042.

The product of its digits is 36864, while the sum is 39.

The spelling of 19821822222 in words is "nineteen billion, eight hundred twenty-one million, eight hundred twenty-two thousand, two hundred twenty-two".