1122211111112 has 64 divisors (see below), whose sum is σ = 2618816054400. Its totient is φ = 438963402240.

The previous prime is 1122211111111. The next prime is 1122211111141. The reversal of 1122211111112 is 2111111122211.

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 (1122211111111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8595314 + ... + 8724897.

It is an arithmetic number, because the mean of its divisors is an integer number (40919000850).

Almost surely, 2^{1122211111112} is an apocalyptic number.

It is an amenable number.

1122211111112 is an abundant number, since it is smaller than the sum of its proper divisors (1496604943288).

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

1122211111112 is a wasteful number, since it uses less digits than its factorization.

1122211111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17320326 (or 17320322 counting only the distinct ones).

The product of its digits is 16, while the sum is 17.

Adding to 1122211111112 its reverse (2111111122211), we get a palindrome (3233322233323).

The spelling of 1122211111112 in words is "one trillion, one hundred twenty-two billion, two hundred eleven million, one hundred eleven thousand, one hundred twelve".