424331441223021 has 48 divisors (see below), whose sum is σ = 620544116215296. Its totient is φ = 279372900896928.

The previous prime is 424331441223007. The next prime is 424331441223047. The reversal of 424331441223021 is 120322144133424.

424331441223021 is a `hidden beast` number, since 4 + 2 + 4 + 3 + 3 + 1 + 4 + 412 + 230 + 2 + 1 = 666.

It is not a de Polignac number, because 424331441223021 - 2¹⁹ = 424331440698733 is a prime.

It is a super-2 number, since 2×424331441223021² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424331441223721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32533263526 + ... + 32533276568.

It is an arithmetic number, because the mean of its divisors is an integer number (12928002421152).

Almost surely, 2^{424331441223021} is an apocalyptic number.

It is an amenable number.

424331441223021 is a deficient number, since it is larger than the sum of its proper divisors (196212674992275).

424331441223021 is a wasteful number, since it uses less digits than its factorization.

424331441223021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26382 (or 26379 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 424331441223021 its reverse (120322144133424), we get a palindrome (544653585356445).

The spelling of 424331441223021 in words is "four hundred twenty-four trillion, three hundred thirty-one billion, four hundred forty-one million, two hundred twenty-three thousand, twenty-one".