12211022121108 has 24 divisors (see below), whose sum is σ = 28558492583040. Its totient is φ = 4060896759360.

The previous prime is 12211022121107. The next prime is 12211022121167. The reversal of 12211022121108 is 80112122011221.

It is a super-2 number, since 2×12211022121108² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1180488073 + ... + 1180498416.

It is an arithmetic number, because the mean of its divisors is an integer number (1189937190960).

Almost surely, 2^{12211022121108} is an apocalyptic number.

It is an amenable number.

12211022121108 is an abundant number, since it is smaller than the sum of its proper divisors (16347470461932).

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

12211022121108 is a wasteful number, since it uses less digits than its factorization.

12211022121108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360986927 (or 2360986925 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 24.

Adding to 12211022121108 its reverse (80112122011221), we get a palindrome (92323144132329).

The spelling of 12211022121108 in words is "twelve trillion, two hundred eleven billion, twenty-two million, one hundred twenty-one thousand, one hundred eight".