12211122 has 32 divisors (see below), whose sum is σ = 30449664. Its totient is φ = 3171600.

The previous prime is 12211103. The next prime is 12211123. The reversal of 12211122 is 22111221.

It is a super-2 number, since 2×12211122² = 298223000997768, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12211098 and 12211107.

It is not an unprimeable number, because it can be changed into a prime (12211123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12754 + ... + 13677.

It is an arithmetic number, because the mean of its divisors is an integer number (951552).

Almost surely, 2^12211122 is an apocalyptic number.

12211122 is an abundant number, since it is smaller than the sum of its proper divisors (18238542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211122 is a wasteful number, since it uses less digits than its factorization.

12211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26454.

The product of its digits is 16, while the sum is 12.

The square root of 12211122 is about 3494.4415862910. The cubic root of 12211122 is about 230.2776860303.

Adding to 12211122 its reverse (22111221), we get a palindrome (34322343).

Subtracting 12211122 from its reverse (22111221), we obtain a palindrome (9900099).

The spelling of 12211122 in words is "twelve million, two hundred eleven thousand, one hundred twenty-two".