101605722011 has 2 divisors, whose sum is σ = 101605722012. Its totient is φ = 101605722010.

The previous prime is 101605722007. The next prime is 101605722017. The reversal of 101605722011 is 110227506101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101605722011 - 2² = 101605722007 is a prime.

It is not a weakly prime, because it can be changed into another prime (101605722017) 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 as a sum of consecutive naturals, namely, 50802861005 + 50802861006.

It is an arithmetic number, because the mean of its divisors is an integer number (50802861006).

Almost surely, 2^101605722011 is an apocalyptic number.

101605722011 is a deficient number, since it is larger than the sum of its proper divisors (1).

101605722011 is an equidigital number, since it uses as much as digits as its factorization.

101605722011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 26.

The spelling of 101605722011 in words is "one hundred one billion, six hundred five million, seven hundred twenty-two thousand, eleven".