12122020111 has 8 divisors (see below), whose sum is σ = 12140100000. Its totient is φ = 12103956480.

The previous prime is 12122020081. The next prime is 12122020123. The reversal of 12122020111 is 11102022121.

12122020111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12122020111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12122020091 and 12122020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122020411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2422390 + ... + 2427388.

It is an arithmetic number, because the mean of its divisors is an integer number (1517512500).

Almost surely, 2^12122020111 is an apocalyptic number.

12122020111 is a deficient number, since it is larger than the sum of its proper divisors (18079889).

12122020111 is a wasteful number, since it uses less digits than its factorization.

12122020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8129.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12122020111 its reverse (11102022121), we get a palindrome (23224042232).

The spelling of 12122020111 in words is "twelve billion, one hundred twenty-two million, twenty thousand, one hundred eleven".