22195950193 has 4 divisors (see below), whose sum is σ = 23501594340. Its totient is φ = 20890306048.

The previous prime is 22195950191. The next prime is 22195950223. The reversal of 22195950193 is 39105959122.

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 13534297569 + 8661652624 = 116337^2 + 93068^2 .

It is a cyclic number.

It is not a de Polignac number, because 22195950193 - 2¹ = 22195950191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22195950191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652822048 + ... + 652822081.

It is an arithmetic number, because the mean of its divisors is an integer number (5875398585).

Almost surely, 2^22195950193 is an apocalyptic number.

It is an amenable number.

22195950193 is a deficient number, since it is larger than the sum of its proper divisors (1305644147).

22195950193 is a wasteful number, since it uses less digits than its factorization.

22195950193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305644146.

The product of its (nonzero) digits is 218700, while the sum is 46.

The spelling of 22195950193 in words is "twenty-two billion, one hundred ninety-five million, nine hundred fifty thousand, one hundred ninety-three".