21422241822 has 32 divisors (see below), whose sum is σ = 43417313280. Its totient is φ = 7045403040.

The previous prime is 21422241803. The next prime is 21422241839. The reversal of 21422241822 is 22814222412.

It is a self number, because there is not a number n which added to its sum of digits gives 21422241822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692547 + ... + 722817.

It is an arithmetic number, because the mean of its divisors is an integer number (1356791040).

Almost surely, 2^21422241822 is an apocalyptic number.

21422241822 is an abundant number, since it is smaller than the sum of its proper divisors (21995071458).

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

21422241822 is a wasteful number, since it uses less digits than its factorization.

21422241822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31848.

The product of its digits is 8192, while the sum is 30.

The spelling of 21422241822 in words is "twenty-one billion, four hundred twenty-two million, two hundred forty-one thousand, eight hundred twenty-two".