2112010110021 has 16 divisors (see below), whose sum is σ = 3218362252928. Its totient is φ = 1206839995200.

The previous prime is 2112010110019. The next prime is 2112010110047. The reversal of 2112010110021 is 1200110102112.

It is not a de Polignac number, because 2112010110021 - 2¹ = 2112010110019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112010109979 and 2112010110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112010115021) 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 15 ways as a sum of consecutive naturals, for example, 209691 + ... + 2065911.

It is an arithmetic number, because the mean of its divisors is an integer number (201147640808).

Almost surely, 2^{2112010110021} is an apocalyptic number.

2112010110021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2112010110021 is a deficient number, since it is larger than the sum of its proper divisors (1106352142907).

2112010110021 is a wasteful number, since it uses less digits than its factorization.

2112010110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910412.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2112010110021 its reverse (1200110102112), we get a palindrome (3312120212133).

The spelling of 2112010110021 in words is "two trillion, one hundred twelve billion, ten million, one hundred ten thousand, twenty-one".