12211120111000 has 128 divisors (see below), whose sum is σ = 30263176532160. Its totient is φ = 4595861760000.

The previous prime is 12211120110991. The next prime is 12211120111019. The reversal of 12211120111000 is 11102111221.

It is a happy number.

It is a super-2 number, since 2×12211120111000² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62819959 + ... + 63014041.

Almost surely, 2^{12211120111000} is an apocalyptic number.

12211120111000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12211120111000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15131588266080).

12211120111000 is an abundant number, since it is smaller than the sum of its proper divisors (18052056421160).

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

12211120111000 is a wasteful number, since it uses less digits than its factorization.

12211120111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197822 (or 197808 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12211120111000 its reverse (11102111221), we get a palindrome (12222222222221).

The spelling of 12211120111000 in words is "twelve trillion, two hundred eleven billion, one hundred twenty million, one hundred eleven thousand".