21202404143344 has 40 divisors (see below), whose sum is σ = 41097377412000. Its totient is φ = 10596630067200.

The previous prime is 21202404143339. The next prime is 21202404143351. The reversal of 21202404143344 is 44334140420212.

It is a congruent number.

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, 794649684 + ... + 794676364.

It is an arithmetic number, because the mean of its divisors is an integer number (1027434435300).

Almost surely, 2^{21202404143344} is an apocalyptic number.

It is an amenable number.

21202404143344 is a deficient number, since it is larger than the sum of its proper divisors (19894973268656).

21202404143344 is a wasteful number, since it uses less digits than its factorization.

21202404143344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46249 (or 46243 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 21202404143344 its reverse (44334140420212), we get a palindrome (65536544563556).

The spelling of 21202404143344 in words is "twenty-one trillion, two hundred two billion, four hundred four million, one hundred forty-three thousand, three hundred forty-four".