1122212222112 has 96 divisors (see below), whose sum is σ = 3085575026688. Its totient is φ = 356446128896.

The previous prime is 1122212222041. The next prime is 1122212222119. The reversal of 1122212222112 is 2112222122211.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is not an unprimeable number, because it can be changed into a prime (1122212222119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385548 + ... + 1546955.

It is an arithmetic number, because the mean of its divisors is an integer number (32141406528).

Almost surely, 2^{1122212222112} is an apocalyptic number.

1122212222112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1122212222112 is an abundant number, since it is smaller than the sum of its proper divisors (1963362804576).

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

1122212222112 is a wasteful number, since it uses less digits than its factorization.

1122212222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932802 (or 1932794 counting only the distinct ones).

The product of its digits is 256, while the sum is 21.

Adding to 1122212222112 its reverse (2112222122211), we get a palindrome (3234434344323).

Subtracting 1122212222112 from its reverse (2112222122211), we obtain a palindrome (990009900099).

The spelling of 1122212222112 in words is "one trillion, one hundred twenty-two billion, two hundred twelve million, two hundred twenty-two thousand, one hundred twelve".