100221012196 has 12 divisors (see below), whose sum is σ = 176069211948. Its totient is φ = 49915523072.

The previous prime is 100221012179. The next prime is 100221012197. The reversal of 100221012196 is 691210122001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60614440000 + 39606572196 = 246200^2 + 199014^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100221012196.

It is not an unprimeable number, because it can be changed into a prime (100221012197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48744601 + ... + 48746656.

It is an arithmetic number, because the mean of its divisors is an integer number (14672434329).

Almost surely, 2^100221012196 is an apocalyptic number.

It is an amenable number.

100221012196 is a deficient number, since it is larger than the sum of its proper divisors (75848199752).

100221012196 is a wasteful number, since it uses less digits than its factorization.

100221012196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97491518 (or 97491516 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 100221012196 its reverse (691210122001), we get a palindrome (791431134197).

The spelling of 100221012196 in words is "one hundred billion, two hundred twenty-one million, twelve thousand, one hundred ninety-six".