22421042524 has 6 divisors (see below), whose sum is σ = 39236824424. Its totient is φ = 11210521260.

The previous prime is 22421042507. The next prime is 22421042543. The reversal of 22421042524 is 42524012422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22421042492 and 22421042501.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2802630312 + ... + 2802630319.

Almost surely, 2^22421042524 is an apocalyptic number.

It is an amenable number.

22421042524 is a deficient number, since it is larger than the sum of its proper divisors (16815781900).

22421042524 is a wasteful number, since it uses less digits than its factorization.

22421042524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5605260635 (or 5605260633 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 22421042524 its reverse (42524012422), we get a palindrome (64945054946).

The spelling of 22421042524 in words is "twenty-two billion, four hundred twenty-one million, forty-two thousand, five hundred twenty-four".