221300323231 has 8 divisors (see below), whose sum is σ = 241680093984. Its totient is φ = 201400076640.

The previous prime is 221300323217. The next prime is 221300323273. The reversal of 221300323231 is 132323003122.

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

It is a cyclic number.

It is not a de Polignac number, because 221300323231 - 2⁵ = 221300323199 is a prime.

It is a super-2 number, since 2×221300323231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221300323031) 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, 119880076 + ... + 119881921.

It is an arithmetic number, because the mean of its divisors is an integer number (30210011748).

Almost surely, 2^221300323231 is an apocalyptic number.

221300323231 is a deficient number, since it is larger than the sum of its proper divisors (20379770753).

221300323231 is a wasteful number, since it uses less digits than its factorization.

221300323231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239762081.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 221300323231 its reverse (132323003122), we get a palindrome (353623326353).

The spelling of 221300323231 in words is "two hundred twenty-one billion, three hundred million, three hundred twenty-three thousand, two hundred thirty-one".