2112020445 has 16 divisors (see below), whose sum is σ = 3379931712. Its totient is φ = 1126177920.

The previous prime is 2112020441. The next prime is 2112020453. The reversal of 2112020445 is 5440202112.

It is not a de Polignac number, because 2112020445 - 2² = 2112020441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112020441) 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, 80314 + ... + 103316.

It is an arithmetic number, because the mean of its divisors is an integer number (211245732).

Almost surely, 2^2112020445 is an apocalyptic number.

It is an amenable number.

2112020445 is a deficient number, since it is larger than the sum of its proper divisors (1267911267).

2112020445 is a wasteful number, since it uses less digits than its factorization.

2112020445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29132.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2112020445 is about 45956.7236103707. The cubic root of 2112020445 is about 1283.0178720127.

Adding to 2112020445 its reverse (5440202112), we get a palindrome (7552222557).

The spelling of 2112020445 in words is "two billion, one hundred twelve million, twenty thousand, four hundred forty-five".