9121330120211 has 4 divisors (see below), whose sum is σ = 9231225663912. Its totient is φ = 9011434576512.

The previous prime is 9121330120193. The next prime is 9121330120229. The reversal of 9121330120211 is 1120210331219.

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

It is an interprime number because it is at equal distance from previous prime (9121330120193) and next prime (9121330120229).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9121330120211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9121330120811) 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 3 ways as a sum of consecutive naturals, for example, 54947771726 + ... + 54947771891.

It is an arithmetic number, because the mean of its divisors is an integer number (2307806415978).

Almost surely, 2^{9121330120211} is an apocalyptic number.

9121330120211 is a deficient number, since it is larger than the sum of its proper divisors (109895543701).

9121330120211 is a wasteful number, since it uses less digits than its factorization.

9121330120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109895543700.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 9121330120211 in words is "nine trillion, one hundred twenty-one billion, three hundred thirty million, one hundred twenty thousand, two hundred eleven".