8221258195775 has 12 divisors (see below), whose sum is σ = 10253287105512. Its totient is φ = 6538989174240.

The previous prime is 8221258195771. The next prime is 8221258195789. The reversal of 8221258195775 is 5775918521228.

It is not a de Polignac number, because 8221258195775 - 2² = 8221258195771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8221258195771) 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, 950430149 + ... + 950438798.

It is an arithmetic number, because the mean of its divisors is an integer number (854440592126).

Almost surely, 2^{8221258195775} is an apocalyptic number.

8221258195775 is a deficient number, since it is larger than the sum of its proper divisors (2032028909737).

8221258195775 is a wasteful number, since it uses less digits than its factorization.

8221258195775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900869130 (or 1900869125 counting only the distinct ones).

The product of its digits is 28224000, while the sum is 62.

The spelling of 8221258195775 in words is "eight trillion, two hundred twenty-one billion, two hundred fifty-eight million, one hundred ninety-five thousand, seven hundred seventy-five".