12220100111 has 4 divisors (see below), whose sum is σ = 12225116952. Its totient is φ = 12215083272.

The previous prime is 12220100093. The next prime is 12220100129. The reversal of 12220100111 is 11100102221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11100102221 = 13 ⋅853854017.

It is an interprime number because it is at equal distance from previous prime (12220100093) and next prime (12220100129).

It is a cyclic number.

It is not a de Polignac number, because 12220100111 - 2⁶ = 12220100047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12220100092 and 12220100101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220100161) 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, 2504765 + ... + 2509638.

It is an arithmetic number, because the mean of its divisors is an integer number (3056279238).

Almost surely, 2^12220100111 is an apocalyptic number.

12220100111 is a deficient number, since it is larger than the sum of its proper divisors (5016841).

12220100111 is an equidigital number, since it uses as much as digits as its factorization.

12220100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016840.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12220100111 its reverse (11100102221), we get a palindrome (23320202332).

The spelling of 12220100111 in words is "twelve billion, two hundred twenty million, one hundred thousand, one hundred eleven".