221013110201 has 16 divisors (see below), whose sum is σ = 241945087440. Its totient is φ = 200643505920.

The previous prime is 221013110191. The next prime is 221013110293. The reversal of 221013110201 is 102011310122.

It can be written as a sum of positive squares in 8 ways, for example, as 132970351801 + 88042758400 = 364651^2 + 296720^2 .

It is a de Polignac number, because none of the positive numbers 2^k-221013110201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221013110701) 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, 12099191 + ... + 12117443.

It is an arithmetic number, because the mean of its divisors is an integer number (15121567965).

Almost surely, 2^221013110201 is an apocalyptic number.

It is an amenable number.

221013110201 is a deficient number, since it is larger than the sum of its proper divisors (20931977239).

221013110201 is a wasteful number, since it uses less digits than its factorization.

221013110201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33596.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 221013110201 its reverse (102011310122), we get a palindrome (323024420323).

The spelling of 221013110201 in words is "two hundred twenty-one billion, thirteen million, one hundred ten thousand, two hundred one".