100221121232 has 20 divisors (see below), whose sum is σ = 195164105796. Its totient is φ = 49856190720.

The previous prime is 100221121213. The next prime is 100221121243. The reversal of 100221121232 is 232121122001.

100221121232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 60685366336 + 39535754896 = 246344^2 + 198836^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100221121232.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 15894869 + ... + 15901172.

Almost surely, 2^100221121232 is an apocalyptic number.

It is an amenable number.

100221121232 is a deficient number, since it is larger than the sum of its proper divisors (94942984564).

100221121232 is a wasteful number, since it uses less digits than its factorization.

100221121232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31796246 (or 31796240 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 100221121232 its reverse (232121122001), we get a palindrome (332342243233).

The spelling of 100221121232 in words is "one hundred billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred thirty-two".