12220211121112 has 16 divisors (see below), whose sum is σ = 23226771138840. Its totient is φ = 6026405484096.

The previous prime is 12220211121067. The next prime is 12220211121113. The reversal of 12220211121112 is 21112111202221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12220211121112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220211121113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10462508938 + ... + 10462510105.

Almost surely, 2^{12220211121112} is an apocalyptic number.

It is an amenable number.

12220211121112 is a deficient number, since it is larger than the sum of its proper divisors (11006560017728).

12220211121112 is a wasteful number, since it uses less digits than its factorization.

12220211121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20925019122 (or 20925019118 counting only the distinct ones).

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

Adding to 12220211121112 its reverse (21112111202221), we get a palindrome (33332322323333).

The spelling of 12220211121112 in words is "twelve trillion, two hundred twenty billion, two hundred eleven million, one hundred twenty-one thousand, one hundred twelve".