20442043212 has 12 divisors (see below), whose sum is σ = 47698100856. Its totient is φ = 6814014400.

The previous prime is 20442043207. The next prime is 20442043213. The reversal of 20442043212 is 21234024402.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (20442043213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851751789 + ... + 851751812.

It is an arithmetic number, because the mean of its divisors is an integer number (3974841738).

Almost surely, 2^20442043212 is an apocalyptic number.

It is an amenable number.

20442043212 is an abundant number, since it is smaller than the sum of its proper divisors (27256057644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20442043212 is a wasteful number, since it uses less digits than its factorization.

20442043212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703503608 (or 1703503606 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20442043212 its reverse (21234024402), we get a palindrome (41676067614).

The spelling of 20442043212 in words is "twenty billion, four hundred forty-two million, forty-three thousand, two hundred twelve".