221332313230 has 128 divisors (see below), whose sum is σ = 464616622080. Its totient is φ = 74355356160.

The previous prime is 221332313221. The next prime is 221332313239. The reversal of 221332313230 is 32313233122.

It is an interprime number because it is at equal distance from previous prime (221332313221) and next prime (221332313239).

It is a junction number, because it is equal to n+sod(n) for n = 221332313195 and 221332313204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221332313239) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 409116760 + ... + 409117300.

It is an arithmetic number, because the mean of its divisors is an integer number (3629817360).

Almost surely, 2^221332313230 is an apocalyptic number.

221332313230 is an abundant number, since it is smaller than the sum of its proper divisors (243284308850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221332313230 is a wasteful number, since it uses less digits than its factorization.

221332313230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 221332313230 its reverse (32313233122), we get a palindrome (253645546352).

The spelling of 221332313230 in words is "two hundred twenty-one billion, three hundred thirty-two million, three hundred thirteen thousand, two hundred thirty".