2112010010021 has 8 divisors (see below), whose sum is σ = 2143629416544. Its totient is φ = 2080393452720.

The previous prime is 2112010009951. The next prime is 2112010010057. The reversal of 2112010010021 is 1200100102112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112010010021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112010009984 and 2112010010011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112010010221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 805331 + ... + 2207391.

It is an arithmetic number, because the mean of its divisors is an integer number (267953677068).

Almost surely, 2^{2112010010021} is an apocalyptic number.

It is an amenable number.

2112010010021 is a deficient number, since it is larger than the sum of its proper divisors (31619406523).

2112010010021 is a wasteful number, since it uses less digits than its factorization.

2112010010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424611.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2112010010021 its reverse (1200100102112), we get a palindrome (3312110112133).

The spelling of 2112010010021 in words is "two trillion, one hundred twelve billion, ten million, ten thousand, twenty-one".