4212044044021 has 16 divisors (see below), whose sum is σ = 4671148277376. Its totient is φ = 3765661560000.

The previous prime is 4212044044009. The next prime is 4212044044037. The reversal of 4212044044021 is 1204404402124.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4212044044021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4212044044051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3066291 + ... + 4222111.

It is an arithmetic number, because the mean of its divisors is an integer number (291946767336).

Almost surely, 2^{4212044044021} is an apocalyptic number.

It is an amenable number.

4212044044021 is a deficient number, since it is larger than the sum of its proper divisors (459104233355).

4212044044021 is a wasteful number, since it uses less digits than its factorization.

4212044044021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161324.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 4212044044021 its reverse (1204404402124), we get a palindrome (5416448446145).

The spelling of 4212044044021 in words is "four trillion, two hundred twelve billion, forty-four million, forty-four thousand, twenty-one".