12211022121106 has 8 divisors (see below), whose sum is σ = 18948137774220. Its totient is φ = 5894976196368.

The previous prime is 12211022121091. The next prime is 12211022121107. The reversal of 12211022121106 is 60112122011221.

It can be written as a sum of positive squares in 2 ways, for example, as 11904632195481 + 306389925625 = 3450309^2 + 553525^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12211022121106² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12211022121107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105267432021 + ... + 105267432136.

Almost surely, 2^{12211022121106} is an apocalyptic number.

12211022121106 is a deficient number, since it is larger than the sum of its proper divisors (6737115653114).

12211022121106 is a wasteful number, since it uses less digits than its factorization.

12211022121106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210534864188.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 12211022121106 its reverse (60112122011221), we get a palindrome (72323144132327).

The spelling of 12211022121106 in words is "twelve trillion, two hundred eleven billion, twenty-two million, one hundred twenty-one thousand, one hundred six".