195363000221 has 4 divisors (see below), whose sum is σ = 197716771392. Its totient is φ = 193009229052.

The previous prime is 195363000199. The next prime is 195363000251. The reversal of 195363000221 is 122000363591.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122000363591 = 1307 ⋅93343813.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195363000221 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 (195363000251) 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, 1176885461 + ... + 1176885626.

It is an arithmetic number, because the mean of its divisors is an integer number (49429192848).

Almost surely, 2^195363000221 is an apocalyptic number.

It is an amenable number.

195363000221 is a deficient number, since it is larger than the sum of its proper divisors (2353771171).

195363000221 is an equidigital number, since it uses as much as digits as its factorization.

195363000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353771170.

The product of its (nonzero) digits is 9720, while the sum is 32.

The spelling of 195363000221 in words is "one hundred ninety-five billion, three hundred sixty-three million, two hundred twenty-one", and thus it is an aban number.