21922450877 has 8 divisors (see below), whose sum is σ = 22436826720. Its totient is φ = 21408282000.

The previous prime is 21922450841. The next prime is 21922450889. The reversal of 21922450877 is 77805422912.

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

It is a cyclic number.

It is not a de Polignac number, because 21922450877 - 2²² = 21918256573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21922440877) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 174002 + ... + 272252.

It is an arithmetic number, because the mean of its divisors is an integer number (2804603340).

Almost surely, 2^21922450877 is an apocalyptic number.

It is an amenable number.

21922450877 is a deficient number, since it is larger than the sum of its proper divisors (514375843).

21922450877 is an equidigital number, since it uses as much as digits as its factorization.

21922450877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103483.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 21922450877 in words is "twenty-one billion, nine hundred twenty-two million, four hundred fifty thousand, eight hundred seventy-seven".