21922233505917 has 8 divisors (see below), whose sum is σ = 29238119505600. Its totient is φ = 14610584921760.

The previous prime is 21922233505819. The next prime is 21922233505927. The reversal of 21922233505917 is 71950533222912.

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

It is not a de Polignac number, because 21922233505917 - 2²² = 21922229311613 is a prime.

It is a super-3 number, since 3×21922233505917³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 21922233505917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21922233505927) 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, 1059341809 + ... + 1059362502.

It is an arithmetic number, because the mean of its divisors is an integer number (3654764938200).

Almost surely, 2^{21922233505917} is an apocalyptic number.

It is an amenable number.

21922233505917 is a deficient number, since it is larger than the sum of its proper divisors (7315885999683).

21922233505917 is a wasteful number, since it uses less digits than its factorization.

21922233505917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118707763.

The product of its (nonzero) digits is 2041200, while the sum is 51.

The spelling of 21922233505917 in words is "twenty-one trillion, nine hundred twenty-two billion, two hundred thirty-three million, five hundred five thousand, nine hundred seventeen".