100120221606 has 16 divisors (see below), whose sum is σ = 200817509184. Its totient is φ = 33277229544.

The previous prime is 100120221589. The next prime is 100120221629. The reversal of 100120221606 is 606122021001.

100120221606 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24042160 + ... + 24046323.

It is an arithmetic number, because the mean of its divisors is an integer number (12551094324).

Almost surely, 2^100120221606 is an apocalyptic number.

100120221606 is an abundant number, since it is smaller than the sum of its proper divisors (100697287578).

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

100120221606 is a wasteful number, since it uses less digits than its factorization.

100120221606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48088835.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 100120221606 its reverse (606122021001), we get a palindrome (706242242607).

The spelling of 100120221606 in words is "one hundred billion, one hundred twenty million, two hundred twenty-one thousand, six hundred six".