10091211091 has 8 divisors (see below), whose sum is σ = 10868576544. Its totient is φ = 9314005440.

The previous prime is 10091211073. The next prime is 10091211121. The reversal of 10091211091 is 19011219001.

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 10091211091 - 2¹¹ = 10091209043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10091211041) 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 7 ways as a sum of consecutive naturals, for example, 112890 + ... + 181456.

It is an arithmetic number, because the mean of its divisors is an integer number (1358572068).

Almost surely, 2^10091211091 is an apocalyptic number.

10091211091 is a deficient number, since it is larger than the sum of its proper divisors (777365453).

10091211091 is a wasteful number, since it uses less digits than its factorization.

10091211091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79901.

The product of its (nonzero) digits is 162, while the sum is 25.

The spelling of 10091211091 in words is "ten billion, ninety-one million, two hundred eleven thousand, ninety-one".