12211112220112 has 40 divisors (see below), whose sum is σ = 26819952961760. Its totient is φ = 5339271738240.

The previous prime is 12211112220107. The next prime is 12211112220137. The reversal of 12211112220112 is 21102221111221.

It is a happy number.

It is a super-3 number, since 3×12211112220112³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 12211112220112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1544924214 + ... + 1544932117.

It is an arithmetic number, because the mean of its divisors is an integer number (670498824044).

Almost surely, 2^{12211112220112} is an apocalyptic number.

It is an amenable number.

12211112220112 is an abundant number, since it is smaller than the sum of its proper divisors (14608840741648).

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

12211112220112 is a wasteful number, since it uses less digits than its factorization.

12211112220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089856371 (or 3089856365 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12211112220112 its reverse (21102221111221), we get a palindrome (33313333331333).

The spelling of 12211112220112 in words is "twelve trillion, two hundred eleven billion, one hundred twelve million, two hundred twenty thousand, one hundred twelve".