9212120020111 has 8 divisors (see below), whose sum is σ = 9278803326800. Its totient is φ = 9145442557440.

The previous prime is 9212120020079. The next prime is 9212120020151. The reversal of 9212120020111 is 1110200212129.

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 9212120020111 - 2⁵ = 9212120020079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9212120020151) 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, 1728175 + ... + 4627183.

It is an arithmetic number, because the mean of its divisors is an integer number (1159850415850).

Almost surely, 2^{9212120020111} is an apocalyptic number.

9212120020111 is a deficient number, since it is larger than the sum of its proper divisors (66683306689).

9212120020111 is a wasteful number, since it uses less digits than its factorization.

9212120020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2922009.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 9212120020111 in words is "nine trillion, two hundred twelve billion, one hundred twenty million, twenty thousand, one hundred eleven".