8220225143849 has 4 divisors (see below), whose sum is σ = 8220320984064. Its totient is φ = 8220129303636.

The previous prime is 8220225143803. The next prime is 8220225143863. The reversal of 8220225143849 is 9483415220228.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8220225143849 - 2²⁴ = 8220208366633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8220225143797 and 8220225143806.

It is not an unprimeable number, because it can be changed into a prime (8220225133849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47791337 + ... + 47963030.

It is an arithmetic number, because the mean of its divisors is an integer number (2055080246016).

Almost surely, 2^{8220225143849} is an apocalyptic number.

It is an amenable number.

8220225143849 is a deficient number, since it is larger than the sum of its proper divisors (95840215).

8220225143849 is an equidigital number, since it uses as much as digits as its factorization.

8220225143849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95840214.

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 8220225143849 in words is "eight trillion, two hundred twenty billion, two hundred twenty-five million, one hundred forty-three thousand, eight hundred forty-nine".