4424212023421 has 4 divisors (see below), whose sum is σ = 4424252485600. Its totient is φ = 4424171561244.

The previous prime is 4424212023409. The next prime is 4424212023437. The reversal of 4424212023421 is 1243202124244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4424212023421 - 2¹³ = 4424212015229 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 (4424212020421) 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, 20066631 + ... + 20285908.

It is an arithmetic number, because the mean of its divisors is an integer number (1106063121400).

Almost surely, 2^{4424212023421} is an apocalyptic number.

It is an amenable number.

4424212023421 is a deficient number, since it is larger than the sum of its proper divisors (40462179).

4424212023421 is a wasteful number, since it uses less digits than its factorization.

4424212023421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40462178.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 4424212023421 its reverse (1243202124244), we get a palindrome (5667414147665).

The spelling of 4424212023421 in words is "four trillion, four hundred twenty-four billion, two hundred twelve million, twenty-three thousand, four hundred twenty-one".