12223311121 has 12 divisors (see below), whose sum is σ = 14349409140. Its totient is φ = 10380998880.

The previous prime is 12223311119. The next prime is 12223311127. The reversal of 12223311121 is 12111332221.

It can be written as a sum of positive squares in 2 ways, for example, as 3814421121 + 8408890000 = 61761^2 + 91700^2 .

It is not a de Polignac number, because 12223311121 - 2¹ = 12223311119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12223311127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1138950 + ... + 1149631.

It is an arithmetic number, because the mean of its divisors is an integer number (1195784095).

Almost surely, 2^12223311121 is an apocalyptic number.

It is an amenable number.

12223311121 is a deficient number, since it is larger than the sum of its proper divisors (2126098019).

12223311121 is a wasteful number, since it uses less digits than its factorization.

12223311121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288704 (or 2288697 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

Adding to 12223311121 its reverse (12111332221), we get a palindrome (24334643342).

The spelling of 12223311121 in words is "twelve billion, two hundred twenty-three million, three hundred eleven thousand, one hundred twenty-one".