22182750081 has 12 divisors (see below), whose sum is σ = 32049381780. Its totient is φ = 14784977760.

The previous prime is 22182750061. The next prime is 22182750133. The reversal of 22182750081 is 18005728122.

It can be written as a sum of positive squares in 2 ways, for example, as 17360697600 + 4822052481 = 131760^2 + 69441^2 .

It is not a de Polignac number, because 22182750081 - 2⁶ = 22182750017 is a prime.

It is a super-2 number, since 2×22182750081² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22182750061) 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, 253350 + ... + 329471.

It is an arithmetic number, because the mean of its divisors is an integer number (2670781815).

Almost surely, 2^22182750081 is an apocalyptic number.

It is an amenable number.

22182750081 is a deficient number, since it is larger than the sum of its proper divisors (9866631699).

22182750081 is a wasteful number, since it uses less digits than its factorization.

22182750081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587056 (or 587053 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The spelling of 22182750081 in words is "twenty-two billion, one hundred eighty-two million, seven hundred fifty thousand, eighty-one".