21444120422333 has 16 divisors (see below), whose sum is σ = 24746201948160. Its totient is φ = 18202283689200.

The previous prime is 21444120422321. The next prime is 21444120422339. The reversal of 21444120422333 is 33322402144412.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21444120422333 - 2⁴ = 21444120422317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21444120422293 and 21444120422302.

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 15 ways as a sum of consecutive naturals, for example, 23971073 + ... + 24849558.

It is an arithmetic number, because the mean of its divisors is an integer number (1546637621760).

Almost surely, 2^{21444120422333} is an apocalyptic number.

It is an amenable number.

21444120422333 is a deficient number, since it is larger than the sum of its proper divisors (3302081525827).

21444120422333 is a wasteful number, since it uses less digits than its factorization.

21444120422333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48821248.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 21444120422333 its reverse (33322402144412), we get a palindrome (54766522566745).

The spelling of 21444120422333 in words is "twenty-one trillion, four hundred forty-four billion, one hundred twenty million, four hundred twenty-two thousand, three hundred thirty-three".