212112123320111 has 8 divisors (see below), whose sum is σ = 242452960588800. Its totient is φ = 181781062392888.

The previous prime is 212112123320039. The next prime is 212112123320131. The reversal of 212112123320111 is 111023321211212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-212112123320111 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 (212112123320131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2444038871 + ... + 2444125656.

It is an arithmetic number, because the mean of its divisors is an integer number (30306620073600).

Almost surely, 2^{212112123320111} is an apocalyptic number.

212112123320111 is a deficient number, since it is larger than the sum of its proper divisors (30340837268689).

212112123320111 is an equidigital number, since it uses as much as digits as its factorization.

212112123320111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4888170733.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 212112123320111 its reverse (111023321211212), we get a palindrome (323135444531323).

The spelling of 212112123320111 in words is "two hundred twelve trillion, one hundred twelve billion, one hundred twenty-three million, three hundred twenty thousand, one hundred eleven".