21443024211244 has 24 divisors (see below), whose sum is σ = 37749858546960. Its totient is φ = 10657375487424.

The previous prime is 21443024211229. The next prime is 21443024211347. The reversal of 21443024211244 is 44211242034412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272847 + ... + 6554425.

It is an arithmetic number, because the mean of its divisors is an integer number (1572910772790).

Almost surely, 2^{21443024211244} is an apocalyptic number.

It is an amenable number.

21443024211244 is a deficient number, since it is larger than the sum of its proper divisors (16306834335716).

21443024211244 is a wasteful number, since it uses less digits than its factorization.

21443024211244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6286689 (or 6286687 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 34.

Adding to 21443024211244 its reverse (44211242034412), we get a palindrome (65654266245656).

The spelling of 21443024211244 in words is "twenty-one trillion, four hundred forty-three billion, twenty-four million, two hundred eleven thousand, two hundred forty-four".