22071195161 has 4 divisors (see below), whose sum is σ = 22273683300. Its totient is φ = 21868707024.

The previous prime is 22071195151. The next prime is 22071195191. The reversal of 22071195161 is 16159117022.

It is a happy number.

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 12954764761 + 9116430400 = 113819^2 + 95480^2 .

It is a cyclic number.

It is not a de Polignac number, because 22071195161 - 2²⁶ = 22004086297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22071195151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101243906 + ... + 101244123.

It is an arithmetic number, because the mean of its divisors is an integer number (5568420825).

Almost surely, 2^22071195161 is an apocalyptic number.

It is an amenable number.

22071195161 is a deficient number, since it is larger than the sum of its proper divisors (202488139).

22071195161 is a wasteful number, since it uses less digits than its factorization.

22071195161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202488138.

The product of its (nonzero) digits is 7560, while the sum is 35.

The spelling of 22071195161 in words is "twenty-two billion, seventy-one million, one hundred ninety-five thousand, one hundred sixty-one".