21202313224111 has 8 divisors (see below), whose sum is σ = 21459566499840. Its totient is φ = 20945102894232.

The previous prime is 21202313224109. The next prime is 21202313224123. The reversal of 21202313224111 is 11142231320212.

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

It is a cyclic number.

It is not a de Polignac number, because 21202313224111 - 2¹ = 21202313224109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202313234111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9742521 + ... + 11718418.

It is an arithmetic number, because the mean of its divisors is an integer number (2682445812480).

Almost surely, 2^{21202313224111} is an apocalyptic number.

21202313224111 is a deficient number, since it is larger than the sum of its proper divisors (257253275729).

21202313224111 is a wasteful number, since it uses less digits than its factorization.

21202313224111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21472925.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 21202313224111 its reverse (11142231320212), we get a palindrome (32344544544323).

The spelling of 21202313224111 in words is "twenty-one trillion, two hundred two billion, three hundred thirteen million, two hundred twenty-four thousand, one hundred eleven".