1011111212012 has 24 divisors (see below), whose sum is σ = 2014229452032. Its totient is φ = 439613570000.

The previous prime is 1011111211997. The next prime is 1011111212047. The reversal of 1011111212012 is 2102121111101.

It is a super-2 number, since 2×1011111212012² (a number of 25 digits) contains 22 as substring.

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, 499559864 + ... + 499561887.

It is an arithmetic number, because the mean of its divisors is an integer number (83926227168).

Almost surely, 2^{1011111212012} is an apocalyptic number.

It is an amenable number.

1011111212012 is a deficient number, since it is larger than the sum of its proper divisors (1003118240020).

1011111212012 is a wasteful number, since it uses less digits than its factorization.

1011111212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999121789 (or 999121787 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1011111212012 its reverse (2102121111101), we get a palindrome (3113232323113).

The spelling of 1011111212012 in words is "one trillion, eleven billion, one hundred eleven million, two hundred twelve thousand, twelve".