221232131313201 has 12 divisors (see below), whose sum is σ = 319557840498000. Its totient is φ = 147487941008280.

The previous prime is 221232131313199. The next prime is 221232131313217. The reversal of 221232131313201 is 102313131232122.

221232131313201 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 3 + 21 + 313 + 1 + 320 + 1 = 666.

221232131313201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221232131313201 - 2¹ = 221232131313199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221232131313301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2218951 + ... + 21151548.

It is an arithmetic number, because the mean of its divisors is an integer number (26629820041500).

Almost surely, 2^{221232131313201} is an apocalyptic number.

It is an amenable number.

221232131313201 is a deficient number, since it is larger than the sum of its proper divisors (98325709184799).

221232131313201 is a wasteful number, since it uses less digits than its factorization.

221232131313201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24422316 (or 24422313 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 221232131313201 its reverse (102313131232122), we get a palindrome (323545262545323).

The spelling of 221232131313201 in words is "two hundred twenty-one trillion, two hundred thirty-two billion, one hundred thirty-one million, three hundred thirteen thousand, two hundred one".