2112033021 has 32 divisors (see below), whose sum is σ = 3298775040. Its totient is φ = 1176807744.

The previous prime is 2112033019. The next prime is 2112033043. The reversal of 2112033021 is 1203302112.

It is not a de Polignac number, because 2112033021 - 2¹ = 2112033019 is a prime.

It is a super-3 number, since 3×2112033021³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112033061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 647631 + ... + 650883.

It is an arithmetic number, because the mean of its divisors is an integer number (103086720).

Almost surely, 2^2112033021 is an apocalyptic number.

2112033021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2112033021 is a deficient number, since it is larger than the sum of its proper divisors (1186742019).

2112033021 is a wasteful number, since it uses less digits than its factorization.

2112033021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4025.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2112033021 is about 45956.8604345423. The cubic root of 2112033021 is about 1283.0204185791.

Adding to 2112033021 its reverse (1203302112), we get a palindrome (3315335133).

The spelling of 2112033021 in words is "two billion, one hundred twelve million, thirty-three thousand, twenty-one".