1021112002112 has 28 divisors (see below), whose sum is σ = 2027856033180. Its totient is φ = 510156151296.

The previous prime is 1021112002091. The next prime is 1021112002139. The reversal of 1021112002112 is 2112002111201.

It can be written as a sum of positive squares in 2 ways, for example, as 311703356416 + 709408645696 = 558304^2 + 842264^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6165287 + ... + 6328742.

Almost surely, 2^{1021112002112} is an apocalyptic number.

It is an amenable number.

1021112002112 is a deficient number, since it is larger than the sum of its proper divisors (1006744031068).

1021112002112 is a wasteful number, since it uses less digits than its factorization.

1021112002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12495318 (or 12495308 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1021112002112 its reverse (2112002111201), we get a palindrome (3133114113313).

The spelling of 1021112002112 in words is "one trillion, twenty-one billion, one hundred twelve million, two thousand, one hundred twelve".