2112002010021 has 8 divisors (see below), whose sum is σ = 2816121648640. Its totient is φ = 1407941855712.

The previous prime is 2112002009987. The next prime is 2112002010149. The reversal of 2112002010021 is 1200102002112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2112002010021 - 2¹⁷ = 2112001878949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112002009979 and 2112002010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112002010421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14788165 + ... + 14930298.

It is an arithmetic number, because the mean of its divisors is an integer number (352015206080).

Almost surely, 2^{2112002010021} is an apocalyptic number.

It is an amenable number.

2112002010021 is a deficient number, since it is larger than the sum of its proper divisors (704119638619).

2112002010021 is a wasteful number, since it uses less digits than its factorization.

2112002010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29742155.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2112002010021 its reverse (1200102002112), we get a palindrome (3312104012133).

The spelling of 2112002010021 in words is "two trillion, one hundred twelve billion, two million, ten thousand, twenty-one".