12220112211 has 16 divisors (see below), whose sum is σ = 16766800800. Its totient is φ = 7910949888.

The previous prime is 12220112209. The next prime is 12220112269. The reversal of 12220112211 is 11221102221.

It is not a de Polignac number, because 12220112211 - 2¹ = 12220112209 is a prime.

It is a super-2 number, since 2×12220112211² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12220112291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51646 + ... + 164643.

It is an arithmetic number, because the mean of its divisors is an integer number (1047925050).

Almost surely, 2^12220112211 is an apocalyptic number.

12220112211 is a deficient number, since it is larger than the sum of its proper divisors (4546688589).

12220112211 is a wasteful number, since it uses less digits than its factorization.

12220112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216838.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12220112211 its reverse (11221102221), we get a palindrome (23441214432).

The spelling of 12220112211 in words is "twelve billion, two hundred twenty million, one hundred twelve thousand, two hundred eleven".