12211010102091 has 4 divisors (see below), whose sum is σ = 16281346802792. Its totient is φ = 8140673401392.

The previous prime is 12211010102089. The next prime is 12211010102099. The reversal of 12211010102091 is 19020101011221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12211010102091 - 2¹ = 12211010102089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12211010102099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2035168350346 + ... + 2035168350351.

It is an arithmetic number, because the mean of its divisors is an integer number (4070336700698).

Almost surely, 2^{12211010102091} is an apocalyptic number.

12211010102091 is a deficient number, since it is larger than the sum of its proper divisors (4070336700701).

12211010102091 is an equidigital number, since it uses as much as digits as its factorization.

12211010102091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4070336700700.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 12211010102091 in words is "twelve trillion, two hundred eleven billion, ten million, one hundred two thousand, ninety-one".