22838218281 has 12 divisors (see below), whose sum is σ = 33529334020. Its totient is φ = 14975880480.

The previous prime is 22838218267. The next prime is 22838218303. The reversal of 22838218281 is 18281283822.

22838218281 is a `hidden beast` number, since 2 + 283 + 82 + 18 + 281 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8017590681 + 14820627600 = 89541^2 + 121740^2 .

It is not a de Polignac number, because 22838218281 - 2⁷ = 22838218153 is a prime.

It is a super-2 number, since 2×22838218281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22838218261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20799286 + ... + 20800383.

Almost surely, 2^22838218281 is an apocalyptic number.

It is an amenable number.

22838218281 is a deficient number, since it is larger than the sum of its proper divisors (10691115739).

22838218281 is a wasteful number, since it uses less digits than its factorization.

22838218281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41599736 (or 41599733 counting only the distinct ones).

The product of its digits is 196608, while the sum is 45.

The spelling of 22838218281 in words is "twenty-two billion, eight hundred thirty-eight million, two hundred eighteen thousand, two hundred eighty-one".