21224234403202 has 8 divisors (see below), whose sum is σ = 31836408973200. Its totient is φ = 10612098078804.

The previous prime is 21224234403199. The next prime is 21224234403269. The reversal of 21224234403202 is 20230443242212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 8131252 + ... + 10419487.

It is an arithmetic number, because the mean of its divisors is an integer number (3979551121650).

Almost surely, 2^{21224234403202} is an apocalyptic number.

21224234403202 is a deficient number, since it is larger than the sum of its proper divisors (10612174569998).

21224234403202 is a wasteful number, since it uses less digits than its factorization.

21224234403202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19122800.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 21224234403202 its reverse (20230443242212), we get a palindrome (41454677645414).

The spelling of 21224234403202 in words is "twenty-one trillion, two hundred twenty-four billion, two hundred thirty-four million, four hundred three thousand, two hundred two".