424200124221 has 16 divisors (see below), whose sum is σ = 566866210944. Its totient is φ = 282167276544.

The previous prime is 424200124189. The next prime is 424200124241. The reversal of 424200124221 is 122421002424.

It is a happy number.

It is not a de Polignac number, because 424200124221 - 2⁵ = 424200124189 is a prime.

It is a super-2 number, since 2×424200124221² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 424200124191 and 424200124200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424200124241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8907345 + ... + 8954841.

It is an arithmetic number, because the mean of its divisors is an integer number (35429138184).

Almost surely, 2^424200124221 is an apocalyptic number.

It is an amenable number.

424200124221 is a deficient number, since it is larger than the sum of its proper divisors (142666086723).

424200124221 is a wasteful number, since it uses less digits than its factorization.

424200124221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54100.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 424200124221 its reverse (122421002424), we get a palindrome (546621126645).

The spelling of 424200124221 in words is "four hundred twenty-four billion, two hundred million, one hundred twenty-four thousand, two hundred twenty-one".