21444120422334 has 192 divisors, whose sum is σ = 48975181295040. Its totient is φ = 6773442600960.

The previous prime is 21444120422321. The next prime is 21444120422339. The reversal of 21444120422334 is 43322402144412.

21444120422334 is a `hidden beast` number, since 2 + 1 + 4 + 4 + 412 + 0 + 4 + 2 + 233 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21444120422339) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 7904208162 + ... + 7904210874.

It is an arithmetic number, because the mean of its divisors is an integer number (255079069245).

Almost surely, 2^{21444120422334} is an apocalyptic number.

21444120422334 is an abundant number, since it is smaller than the sum of its proper divisors (27531060872706).

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

21444120422334 is a wasteful number, since it uses less digits than its factorization.

21444120422334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4107 (or 4104 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 21444120422334 its reverse (43322402144412), we get a palindrome (64766522566746).

The spelling of 21444120422334 in words is "twenty-one trillion, four hundred forty-four billion, one hundred twenty million, four hundred twenty-two thousand, three hundred thirty-four".