21441033431212 has 48 divisors (see below), whose sum is σ = 39628951417440. Its totient is φ = 10122268695552.

The previous prime is 21441033431171. The next prime is 21441033431239. The reversal of 21441033431212 is 21213433014412.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127531318 + ... + 127699330.

It is an arithmetic number, because the mean of its divisors is an integer number (825603154530).

Almost surely, 2^{21441033431212} is an apocalyptic number.

It is an amenable number.

21441033431212 is a deficient number, since it is larger than the sum of its proper divisors (18187917986228).

21441033431212 is a wasteful number, since it uses less digits than its factorization.

21441033431212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173650 (or 173648 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 21441033431212 its reverse (21213433014412), we get a palindrome (42654466445624).

The spelling of 21441033431212 in words is "twenty-one trillion, four hundred forty-one billion, thirty-three million, four hundred thirty-one thousand, two hundred twelve".