221300201013121 has 16 divisors (see below), whose sum is σ = 221613214128768. Its totient is φ = 220987477065600.

The previous prime is 221300201013119. The next prime is 221300201013127. The reversal of 221300201013121 is 121310102003122.

It is a cyclic number.

It is not a de Polignac number, because 221300201013121 - 2¹ = 221300201013119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221300201013127) 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, 13214310670 + ... + 13214327416.

It is an arithmetic number, because the mean of its divisors is an integer number (13850825883048).

Almost surely, 2^{221300201013121} is an apocalyptic number.

It is an amenable number.

221300201013121 is a deficient number, since it is larger than the sum of its proper divisors (313013115647).

221300201013121 is a wasteful number, since it uses less digits than its factorization.

221300201013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24312.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 221300201013121 its reverse (121310102003122), we get a palindrome (342610303016243).

Subtracting from 221300201013121 its reverse (121310102003122), we obtain a palindrome (99990099009999).

The spelling of 221300201013121 in words is "two hundred twenty-one trillion, three hundred billion, two hundred one million, thirteen thousand, one hundred twenty-one".