21322121113223 has 8 divisors (see below), whose sum is σ = 24369545733792. Its totient is φ = 18275048322336.

The previous prime is 21322121113211. The next prime is 21322121113231. The reversal of 21322121113223 is 32231112122312.

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 21322121113223 - 2¹² = 21322121109127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21322121113192 and 21322121113201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322121113523) 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, 87827540 + ... + 88069977.

It is an arithmetic number, because the mean of its divisors is an integer number (3046193216724).

Almost surely, 2^{21322121113223} is an apocalyptic number.

21322121113223 is a deficient number, since it is larger than the sum of its proper divisors (3047424620569).

21322121113223 is a wasteful number, since it uses less digits than its factorization.

21322121113223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175914841.

The product of its digits is 1728, while the sum is 26.

Adding to 21322121113223 its reverse (32231112122312), we get a palindrome (53553233235535).

The spelling of 21322121113223 in words is "twenty-one trillion, three hundred twenty-two billion, one hundred twenty-one million, one hundred thirteen thousand, two hundred twenty-three".