20021839822 has 8 divisors (see below), whose sum is σ = 30844456056. Its totient is φ = 9740354472.

The previous prime is 20021839793. The next prime is 20021839823. The reversal of 20021839822 is 22893812002.

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

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021839823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135282628 + ... + 135282775.

It is an arithmetic number, because the mean of its divisors is an integer number (3855557007).

Almost surely, 2^20021839822 is an apocalyptic number.

20021839822 is a deficient number, since it is larger than the sum of its proper divisors (10822616234).

20021839822 is a wasteful number, since it uses less digits than its factorization.

20021839822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270565442.

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 20021839822 in words is "twenty billion, twenty-one million, eight hundred thirty-nine thousand, eight hundred twenty-two".