122101006565 has 4 divisors (see below), whose sum is σ = 146521207884. Its totient is φ = 97680805248.

The previous prime is 122101006549. The next prime is 122101006597. The reversal of 122101006565 is 565600101221.

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 85064388964 + 37036617601 = 291658^2 + 192449^2 .

It is a cyclic number.

It is not a de Polignac number, because 122101006565 - 2⁴ = 122101006549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12210100652 + ... + 12210100661.

It is an arithmetic number, because the mean of its divisors is an integer number (36630301971).

Almost surely, 2^122101006565 is an apocalyptic number.

It is an amenable number.

122101006565 is a deficient number, since it is larger than the sum of its proper divisors (24420201319).

122101006565 is an equidigital number, since it uses as much as digits as its factorization.

122101006565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24420201318.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 122101006565 its reverse (565600101221), we get a palindrome (687701107786).

The spelling of 122101006565 in words is "one hundred twenty-two billion, one hundred one million, six thousand, five hundred sixty-five".