221313121021201 has 8 divisors (see below), whose sum is σ = 241949481737184. Its totient is φ = 200762924651520.

The previous prime is 221313121021189. The next prime is 221313121021207. The reversal of 221313121021201 is 102120121313122.

It is a happy number.

221313121021201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221313121021201 - 2¹¹ = 221313121019153 is a prime.

It is a super-2 number, since 2×221313121021201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221313121021207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21541081200 + ... + 21541091473.

It is an arithmetic number, because the mean of its divisors is an integer number (30243685217148).

Almost surely, 2^{221313121021201} is an apocalyptic number.

It is an amenable number.

221313121021201 is a deficient number, since it is larger than the sum of its proper divisors (20636360715983).

221313121021201 is a wasteful number, since it uses less digits than its factorization.

221313121021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43082173151.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 221313121021201 its reverse (102120121313122), we get a palindrome (323433242334323).

The spelling of 221313121021201 in words is "two hundred twenty-one trillion, three hundred thirteen billion, one hundred twenty-one million, twenty-one thousand, two hundred one".