223320212113021 has 16 divisors (see below), whose sum is σ = 230931137505600. Its totient is φ = 215812798664320.

The previous prime is 223320212113013. The next prime is 223320212113051. The reversal of 223320212113021 is 120311212023322.

It is a cyclic number.

It is not a de Polignac number, because 223320212113021 - 2³ = 223320212113013 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 (223320212113001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36029055 + ... + 41770003.

It is an arithmetic number, because the mean of its divisors is an integer number (14433196094100).

Almost surely, 2^{223320212113021} is an apocalyptic number.

It is an amenable number.

223320212113021 is a deficient number, since it is larger than the sum of its proper divisors (7610925392579).

223320212113021 is a wasteful number, since it uses less digits than its factorization.

223320212113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5749964.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 223320212113021 its reverse (120311212023322), we get a palindrome (343631424136343).

The spelling of 223320212113021 in words is "two hundred twenty-three trillion, three hundred twenty billion, two hundred twelve million, one hundred thirteen thousand, twenty-one".