1111111010012 has 24 divisors (see below), whose sum is σ = 1949983365120. Its totient is φ = 553973281200.

The previous prime is 1111111010003. The next prime is 1111111010047. The reversal of 1111111010012 is 2100101111111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1111111009975 and 1111111010002.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13097789 + ... + 13182347.

It is an arithmetic number, because the mean of its divisors is an integer number (81249306880).

Almost surely, 2^{1111111010012} is an apocalyptic number.

It is an amenable number.

1111111010012 is a deficient number, since it is larger than the sum of its proper divisors (838872355108).

1111111010012 is a wasteful number, since it uses less digits than its factorization.

1111111010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93881 (or 93879 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 1111111010012 its reverse (2100101111111), we get a palindrome (3211212121123).

The spelling of 1111111010012 in words is "one trillion, one hundred eleven billion, one hundred eleven million, ten thousand, twelve".