1111122112012 has 72 divisors (see below), whose sum is σ = 2361419651808. Its totient is φ = 454679047680.

The previous prime is 1111122112007. The next prime is 1111122112027. The reversal of 1111122112012 is 2102112211111.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2746443 + ... + 3124930.

It is an arithmetic number, because the mean of its divisors is an integer number (32797495164).

Almost surely, 2^{1111122112012} is an apocalyptic number.

It is an amenable number.

1111122112012 is an abundant number, since it is smaller than the sum of its proper divisors (1250297539796).

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

1111122112012 is a wasteful number, since it uses less digits than its factorization.

1111122112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5871439 (or 5871426 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 1111122112012 its reverse (2102112211111), we get a palindrome (3213234323123).

Subtracting 1111122112012 from its reverse (2102112211111), we obtain a palindrome (990990099099).

The spelling of 1111122112012 in words is "one trillion, one hundred eleven billion, one hundred twenty-two million, one hundred twelve thousand, twelve".