21841013822 has 8 divisors (see below), whose sum is σ = 33523416696. Its totient is φ = 10666541592.

The previous prime is 21841013813. The next prime is 21841013833. The reversal of 21841013822 is 22831014812.

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

It is a congruent number.

It is an unprimeable number.

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, 126982553 + ... + 126982724.

It is an arithmetic number, because the mean of its divisors is an integer number (4190427087).

Almost surely, 2^21841013822 is an apocalyptic number.

21841013822 is a deficient number, since it is larger than the sum of its proper divisors (11682402874).

21841013822 is a wasteful number, since it uses less digits than its factorization.

21841013822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253965322.

The product of its (nonzero) digits is 6144, while the sum is 32.

It can be divided in two parts, 218410 and 13822, that added together give a palindrome (232232).

The spelling of 21841013822 in words is "twenty-one billion, eight hundred forty-one million, thirteen thousand, eight hundred twenty-two".