2112034021 has 2 divisors, whose sum is σ = 2112034022. Its totient is φ = 2112034020.

The previous prime is 2112034013. The next prime is 2112034039. The reversal of 2112034021 is 1204302112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1362643396 + 749390625 = 36914^2 + 27375^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112034021 - 2³ = 2112034013 is a prime.

It is a super-3 number, since 3×2112034021³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2112033986 and 2112034004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112034081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056017010 + 1056017011.

It is an arithmetic number, because the mean of its divisors is an integer number (1056017011).

Almost surely, 2^2112034021 is an apocalyptic number.

It is an amenable number.

2112034021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112034021 is an equidigital number, since it uses as much as digits as its factorization.

2112034021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2112034021 is about 45956.8713143095. The cubic root of 2112034021 is about 1283.0206210728.

Adding to 2112034021 its reverse (1204302112), we get a palindrome (3316336133).

The spelling of 2112034021 in words is "two billion, one hundred twelve million, thirty-four thousand, twenty-one".