12022120111 has 4 divisors (see below), whose sum is σ = 12022427224. Its totient is φ = 12021813000.

The previous prime is 12022120109. The next prime is 12022120133. The reversal of 12022120111 is 11102122021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11102122021 = 157 ⋅70714153.

It is a cyclic number.

It is not a de Polignac number, because 12022120111 - 2¹ = 12022120109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12022120091 and 12022120100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022120181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84480 + ... + 176581.

It is an arithmetic number, because the mean of its divisors is an integer number (3005606806).

Almost surely, 2^12022120111 is an apocalyptic number.

12022120111 is a deficient number, since it is larger than the sum of its proper divisors (307113).

12022120111 is an equidigital number, since it uses as much as digits as its factorization.

12022120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307112.

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

Adding to 12022120111 its reverse (11102122021), we get a palindrome (23124242132).

The spelling of 12022120111 in words is "twelve billion, twenty-two million, one hundred twenty thousand, one hundred eleven".