23221241886845 has 4 divisors (see below), whose sum is σ = 27865490264220. Its totient is φ = 18576993509472.

The previous prime is 23221241886841. The next prime is 23221241886859. The reversal of 23221241886845 is 54868814212232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15886011747076 + 7335230139769 = 3985726^2 + 2708363^2 .

It is a cyclic number.

It is not a de Polignac number, because 23221241886845 - 2² = 23221241886841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221241886841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2322124188680 + ... + 2322124188689.

It is an arithmetic number, because the mean of its divisors is an integer number (6966372566055).

Almost surely, 2^{23221241886845} is an apocalyptic number.

It is an amenable number.

23221241886845 is a deficient number, since it is larger than the sum of its proper divisors (4644248377375).

23221241886845 is an equidigital number, since it uses as much as digits as its factorization.

23221241886845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4644248377374.

The product of its digits is 11796480, while the sum is 56.

The spelling of 23221241886845 in words is "twenty-three trillion, two hundred twenty-one billion, two hundred forty-one million, eight hundred eighty-six thousand, eight hundred forty-five".