22421320430244 has 48 divisors (see below), whose sum is σ = 53211273635520. Its totient is φ = 7346107923840.

The previous prime is 22421320430239. The next prime is 22421320430273. The reversal of 22421320430244 is 44203402312422.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9671334 + ... + 11763389.

It is an arithmetic number, because the mean of its divisors is an integer number (1108568200740).

Almost surely, 2^{22421320430244} is an apocalyptic number.

It is an amenable number.

22421320430244 is an abundant number, since it is smaller than the sum of its proper divisors (30789953205276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22421320430244 is a wasteful number, since it uses less digits than its factorization.

22421320430244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21436220 (or 21436218 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 22421320430244 its reverse (44203402312422), we get a palindrome (66624722742666).

The spelling of 22421320430244 in words is "twenty-two trillion, four hundred twenty-one billion, three hundred twenty million, four hundred thirty thousand, two hundred forty-four".