221030232001 has 16 divisors (see below), whose sum is σ = 244426425984. Its totient is φ = 198805204224.

The previous prime is 221030231999. The next prime is 221030232019. The reversal of 221030232001 is 100232030122.

It is a cyclic number.

It is not a de Polignac number, because 221030232001 - 2¹ = 221030231999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221030232041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183706 + ... + 689788.

It is an arithmetic number, because the mean of its divisors is an integer number (15276651624).

Almost surely, 2^221030232001 is an apocalyptic number.

It is an amenable number.

221030232001 is a deficient number, since it is larger than the sum of its proper divisors (23396193983).

221030232001 is a wasteful number, since it uses less digits than its factorization.

221030232001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507240.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 221030232001 its reverse (100232030122), we get a palindrome (321262262123).

The spelling of 221030232001 in words is "two hundred twenty-one billion, thirty million, two hundred thirty-two thousand, one".