2112010021021 has 8 divisors (see below), whose sum is σ = 2223280776800. Its totient is φ = 2000750498640.

The previous prime is 2112010021001. The next prime is 2112010021061. The reversal of 2112010021021 is 1201200102112.

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

It is a cyclic number.

It is not a de Polignac number, because 2112010021021 - 2⁷ = 2112010020893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112010020992 and 2112010021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112010021001) 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, 2421051 + ... + 3175768.

It is an arithmetic number, because the mean of its divisors is an integer number (277910097100).

Almost surely, 2^{2112010021021} is an apocalyptic number.

It is an amenable number.

2112010021021 is a deficient number, since it is larger than the sum of its proper divisors (111270755779).

2112010021021 is a wasteful number, since it uses less digits than its factorization.

2112010021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5616699.

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

Adding to 2112010021021 its reverse (1201200102112), we get a palindrome (3313210123133).

The spelling of 2112010021021 in words is "two trillion, one hundred twelve billion, ten million, twenty-one thousand, twenty-one".