1222122112112 has 40 divisors (see below), whose sum is σ = 2587844284032. Its totient is φ = 554494449600.

The previous prime is 1222122112111. The next prime is 1222122112163. The reversal of 1222122112112 is 2112112212221.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222122112111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6250964 + ... + 6443507.

Almost surely, 2^{1222122112112} is an apocalyptic number.

It is an amenable number.

1222122112112 is an abundant number, since it is smaller than the sum of its proper divisors (1365722171920).

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

1222122112112 is a wasteful number, since it uses less digits than its factorization.

1222122112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12695037 (or 12695031 counting only the distinct ones).

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

Adding to 1222122112112 its reverse (2112112212221), we get a palindrome (3334234324333).

The spelling of 1222122112112 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred twelve thousand, one hundred twelve".