21322011440404 has 48 divisors (see below), whose sum is σ = 37928116800000. Its totient is φ = 10486761292800.

The previous prime is 21322011440369. The next prime is 21322011440419. The reversal of 21322011440404 is 40404411022312.

It is a congruent number.

It is an unprimeable number.

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, 1137225222 + ... + 1137243970.

It is an arithmetic number, because the mean of its divisors is an integer number (790169100000).

Almost surely, 2^{21322011440404} is an apocalyptic number.

It is an amenable number.

21322011440404 is a deficient number, since it is larger than the sum of its proper divisors (16606105359596).

21322011440404 is a wasteful number, since it uses less digits than its factorization.

21322011440404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36568 (or 36566 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 21322011440404 its reverse (40404411022312), we get a palindrome (61726422462716).

The spelling of 21322011440404 in words is "twenty-one trillion, three hundred twenty-two billion, eleven million, four hundred forty thousand, four hundred four".