221113102321321 has 32 divisors (see below), whose sum is σ = 260237477928960. Its totient is φ = 183945127818816.

The previous prime is 221113102321289. The next prime is 221113102321327. The reversal of 221113102321321 is 123123201311122.

It is not a de Polignac number, because 221113102321321 - 2⁵ = 221113102321289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221113102321327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21726250 + ... + 30236668.

It is an arithmetic number, because the mean of its divisors is an integer number (8132421185280).

Almost surely, 2^{221113102321321} is an apocalyptic number.

It is an amenable number.

221113102321321 is a deficient number, since it is larger than the sum of its proper divisors (39124375607639).

221113102321321 is a wasteful number, since it uses less digits than its factorization.

221113102321321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8511133.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 221113102321321 its reverse (123123201311122), we get a palindrome (344236303632443).

The spelling of 221113102321321 in words is "two hundred twenty-one trillion, one hundred thirteen billion, one hundred two million, three hundred twenty-one thousand, three hundred twenty-one".