21922768553269 has 4 divisors (see below), whose sum is σ = 21931654963744. Its totient is φ = 21913882142796.

The previous prime is 21922768553267. The next prime is 21922768553297. The reversal of 21922768553269 is 96235586722912.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21922768553269 - 2¹ = 21922768553267 is a prime.

It is a super-2 number, since 2×21922768553269² (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 (21922768553263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4443201537 + ... + 4443206470.

It is an arithmetic number, because the mean of its divisors is an integer number (5482913740936).

Almost surely, 2^{21922768553269} is an apocalyptic number.

It is an amenable number.

21922768553269 is a deficient number, since it is larger than the sum of its proper divisors (8886410475).

21922768553269 is an equidigital number, since it uses as much as digits as its factorization.

21922768553269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8886410474.

The product of its digits is 195955200, while the sum is 67.

The spelling of 21922768553269 in words is "twenty-one trillion, nine hundred twenty-two billion, seven hundred sixty-eight million, five hundred fifty-three thousand, two hundred sixty-nine".