22128818874471 has 12 divisors (see below), whose sum is σ = 31965224517720. Its totient is φ = 14751911286000.

The previous prime is 22128818874439. The next prime is 22128818874493. The reversal of 22128818874471 is 17447881882122.

22128818874471 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 8 + 8 + 188 + 7 + 447 + 1 = 666.

It is not a de Polignac number, because 22128818874471 - 2⁵ = 22128818874439 is a prime.

It is a super-3 number, since 3×22128818874471³ (a number of 41 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22128818874399 and 22128818874408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22128818874431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52664976 + ... + 53083493.

It is an arithmetic number, because the mean of its divisors is an integer number (2663768709810).

Almost surely, 2^{22128818874471} is an apocalyptic number.

22128818874471 is a deficient number, since it is larger than the sum of its proper divisors (9836405643249).

22128818874471 is a wasteful number, since it uses less digits than its factorization.

22128818874471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105771726 (or 105771723 counting only the distinct ones).

The product of its digits is 25690112, while the sum is 63.

The spelling of 22128818874471 in words is "twenty-two trillion, one hundred twenty-eight billion, eight hundred eighteen million, eight hundred seventy-four thousand, four hundred seventy-one".