21822752920319 has 16 divisors (see below), whose sum is σ = 23900231204640. Its totient is φ = 19802260369920.

The previous prime is 21822752920307. The next prime is 21822752920327. The reversal of 21822752920319 is 91302925722812.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21822752920319 - 2⁴⁴ = 4230566875903 is a prime.

It is a super-2 number, since 2×21822752920319² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21822752920379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42482699 + ... + 42993315.

It is an arithmetic number, because the mean of its divisors is an integer number (1493764450290).

Almost surely, 2^{21822752920319} is an apocalyptic number.

21822752920319 is a deficient number, since it is larger than the sum of its proper divisors (2077478284321).

21822752920319 is a wasteful number, since it uses less digits than its factorization.

21822752920319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566410.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 21822752920319 in words is "twenty-one trillion, eight hundred twenty-two billion, seven hundred fifty-two million, nine hundred twenty thousand, three hundred nineteen".