12211120111 has 8 divisors (see below), whose sum is σ = 12932981424. Its totient is φ = 11489654400.

The previous prime is 12211120093. The next prime is 12211120151. The reversal of 12211120111 is 11102111221.

It is a happy number.

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 12211120111 - 2²⁹ = 11674249199 is a prime.

It is a super-2 number, since 2×12211120111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12211120091 and 12211120100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211120151) 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, 34125 + ... + 159958.

It is an arithmetic number, because the mean of its divisors is an integer number (1616622678).

Almost surely, 2^12211120111 is an apocalyptic number.

12211120111 is a deficient number, since it is larger than the sum of its proper divisors (721861313).

12211120111 is a wasteful number, since it uses less digits than its factorization.

12211120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197801.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12211120111 its reverse (11102111221), we get a palindrome (23313231332).

The spelling of 12211120111 in words is "twelve billion, two hundred eleven million, one hundred twenty thousand, one hundred eleven".