1021112002012 has 48 divisors (see below), whose sum is σ = 1958297383840. Its totient is φ = 464165240832.

The previous prime is 1021112001983. The next prime is 1021112002051. The reversal of 1021112002012 is 2102002111201.

It is a junction number, because it is equal to n+sod(n) for n = 1021112001983 and 1021112002001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2281893 + ... + 2692444.

Almost surely, 2^{1021112002012} is an apocalyptic number.

It is an amenable number.

1021112002012 is a deficient number, since it is larger than the sum of its proper divisors (937185381828).

1021112002012 is a wasteful number, since it uses less digits than its factorization.

1021112002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4974470 (or 4974468 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1021112002012 its reverse (2102002111201), we get a palindrome (3123114113213).

The spelling of 1021112002012 in words is "one trillion, twenty-one billion, one hundred twelve million, two thousand, twelve".