231301222201 has 4 divisors (see below), whose sum is σ = 264344253952. Its totient is φ = 198258190452.

The previous prime is 231301222181. The next prime is 231301222237. The reversal of 231301222201 is 102222103132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 231301222201 - 2⁷ = 231301222073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231301222261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16521515865 + ... + 16521515878.

It is an arithmetic number, because the mean of its divisors is an integer number (66086063488).

Almost surely, 2^231301222201 is an apocalyptic number.

It is an amenable number.

231301222201 is a deficient number, since it is larger than the sum of its proper divisors (33043031751).

231301222201 is an equidigital number, since it uses as much as digits as its factorization.

231301222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33043031750.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 231301222201 its reverse (102222103132), we get a palindrome (333523325333).

The spelling of 231301222201 in words is "two hundred thirty-one billion, three hundred one million, two hundred twenty-two thousand, two hundred one".