1222222120112 has 40 divisors (see below), whose sum is σ = 2706835980576. Its totient is φ = 523715222016.

The previous prime is 1222222120099. The next prime is 1222222120151. The reversal of 1222222120112 is 2110212222221.

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, 354893 + ... + 1603244.

Almost surely, 2^{1222222120112} is an apocalyptic number.

It is an amenable number.

1222222120112 is an abundant number, since it is smaller than the sum of its proper divisors (1484613860464).

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

1222222120112 is a wasteful number, since it uses less digits than its factorization.

1222222120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963725 (or 1963719 counting only the distinct ones).

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

Adding to 1222222120112 its reverse (2110212222221), we get a palindrome (3332434342333).

The spelling of 1222222120112 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred twenty thousand, one hundred twelve".