21822522371 has 16 divisors (see below), whose sum is σ = 24957035040. Its totient is φ = 18914757120.

The previous prime is 21822522353. The next prime is 21822522377. The reversal of 21822522371 is 17322522812.

It is a cyclic number.

It is not a de Polignac number, because 21822522371 - 2²² = 21818328067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21822522377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363020 + ... + 418841.

It is an arithmetic number, because the mean of its divisors is an integer number (1559814690).

Almost surely, 2^21822522371 is an apocalyptic number.

21822522371 is a deficient number, since it is larger than the sum of its proper divisors (3134512669).

21822522371 is a wasteful number, since it uses less digits than its factorization.

21822522371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782006.

The product of its digits is 26880, while the sum is 35.

The spelling of 21822522371 in words is "twenty-one billion, eight hundred twenty-two million, five hundred twenty-two thousand, three hundred seventy-one".