100231230221 has 16 divisors (see below), whose sum is σ = 103731522048. Its totient is φ = 96747955200.

The previous prime is 100231230161. The next prime is 100231230241. The reversal of 100231230221 is 122032132001.

It is a cyclic number.

It is not a de Polignac number, because 100231230221 - 2¹⁸ = 100230968077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100231230221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100231230241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32113541 + ... + 32116661.

It is an arithmetic number, because the mean of its divisors is an integer number (6483220128).

Almost surely, 2^100231230221 is an apocalyptic number.

It is an amenable number.

100231230221 is a deficient number, since it is larger than the sum of its proper divisors (3500291827).

100231230221 is a wasteful number, since it uses less digits than its factorization.

100231230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5492.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 100231230221 its reverse (122032132001), we get a palindrome (222263362222).

The spelling of 100231230221 in words is "one hundred billion, two hundred thirty-one million, two hundred thirty thousand, two hundred twenty-one".