22101137665 has 8 divisors (see below), whose sum is σ = 27238159080. Its totient is φ = 17203047552.

The previous prime is 22101137593. The next prime is 22101137689. The reversal of 22101137665 is 56673110122.

It can be written as a sum of positive squares in 4 ways, for example, as 11372942736 + 10728194929 = 106644^2 + 103577^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22101137665 - 2⁷ = 22101137537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22101137665.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59732620 + ... + 59732989.

It is an arithmetic number, because the mean of its divisors is an integer number (3404769885).

Almost surely, 2^22101137665 is an apocalyptic number.

It is an amenable number.

22101137665 is a deficient number, since it is larger than the sum of its proper divisors (5137021415).

22101137665 is a wasteful number, since it uses less digits than its factorization.

22101137665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119465651.

The product of its (nonzero) digits is 15120, while the sum is 34.

Adding to 22101137665 its reverse (56673110122), we get a palindrome (78774247787).

The spelling of 22101137665 in words is "twenty-two billion, one hundred one million, one hundred thirty-seven thousand, six hundred sixty-five".