12221222101112 has 64 divisors (see below), whose sum is σ = 24712484378400. Its totient is φ = 5647041792000.

The previous prime is 12221222101079. The next prime is 12221222101141. The reversal of 12221222101112 is 21110122212221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47365412 + ... + 47622732.

Almost surely, 2^{12221222101112} is an apocalyptic number.

It is an amenable number.

12221222101112 is an abundant number, since it is smaller than the sum of its proper divisors (12491262277288).

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

12221222101112 is a wasteful number, since it uses less digits than its factorization.

12221222101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265008 (or 265004 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12221222101112 its reverse (21110122212221), we get a palindrome (33331344313333).

The spelling of 12221222101112 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty-two million, one hundred one thousand, one hundred twelve".