12221222020112 has 60 divisors (see below), whose sum is σ = 28185084606096. Its totient is φ = 5115860366400.

The previous prime is 12221222020087. The next prime is 12221222020129. The reversal of 12221222020112 is 21102022212221.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181225514 + ... + 181292937.

Almost surely, 2^{12221222020112} is an apocalyptic number.

It is an amenable number.

12221222020112 is an abundant number, since it is smaller than the sum of its proper divisors (15963862585984).

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

12221222020112 is a wasteful number, since it uses less digits than its factorization.

12221222020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362518516 (or 362518503 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12221222020112 its reverse (21102022212221), we get a palindrome (33323244232333).

The spelling of 12221222020112 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty-two million, twenty thousand, one hundred twelve".