221230102320 has 120 divisors (see below), whose sum is σ = 743125468176. Its totient is φ = 58981906944.

The previous prime is 221230102319. The next prime is 221230102333. The reversal of 221230102320 is 23201032122.

221230102320 is a `hidden beast` number, since 2 + 212 + 30 + 102 + 320 = 666.

221230102320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 221230102293 and 221230102302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3559834 + ... + 3621446.

Almost surely, 2^221230102320 is an apocalyptic number.

221230102320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221230102320 is an abundant number, since it is smaller than the sum of its proper divisors (521895365856).

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

221230102320 is a wasteful number, since it uses less digits than its factorization.

221230102320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66619 (or 66610 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 221230102320 its reverse (23201032122), we get a palindrome (244431134442).

The spelling of 221230102320 in words is "two hundred twenty-one billion, two hundred thirty million, one hundred two thousand, three hundred twenty".