21422020339 has 8 divisors (see below), whose sum is σ = 21841371360. Its totient is φ = 21003230976.

The previous prime is 21422020261. The next prime is 21422020343. The reversal of 21422020339 is 93302022412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21422020339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21422020379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62974 + ... + 216355.

It is an arithmetic number, because the mean of its divisors is an integer number (2730171420).

Almost surely, 2^21422020339 is an apocalyptic number.

21422020339 is a deficient number, since it is larger than the sum of its proper divisors (419351021).

21422020339 is a wasteful number, since it uses less digits than its factorization.

21422020339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280829.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 21422020339 in words is "twenty-one billion, four hundred twenty-two million, twenty thousand, three hundred thirty-nine".