21044333210104 has 16 divisors (see below), whose sum is σ = 39901474486800. Its totient is φ = 10403940013632.

The previous prime is 21044333210057. The next prime is 21044333210107. The reversal of 21044333210104 is 40101233344012.

It is a happy number.

It is a super-2 number, since 2×21044333210104² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21044333210107) 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 3 ways as a sum of consecutive naturals, for example, 14778323172 + ... + 14778324595.

It is an arithmetic number, because the mean of its divisors is an integer number (2493842155425).

Almost surely, 2^{21044333210104} is an apocalyptic number.

It is an amenable number.

21044333210104 is a deficient number, since it is larger than the sum of its proper divisors (18857141276696).

21044333210104 is a wasteful number, since it uses less digits than its factorization.

21044333210104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29556647862 (or 29556647858 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 21044333210104 its reverse (40101233344012), we get a palindrome (61145566554116).

The spelling of 21044333210104 in words is "twenty-one trillion, forty-four billion, three hundred thirty-three million, two hundred ten thousand, one hundred four".