100221002108 has 12 divisors (see below), whose sum is σ = 175439556600. Its totient is φ = 50095414512.

The previous prime is 100221002107. The next prime is 100221002197. The reversal of 100221002108 is 801200122001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221002107) by changing a digit.

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, 3756683 + ... + 3783266.

It is an arithmetic number, because the mean of its divisors is an integer number (14619963050).

Almost surely, 2^100221002108 is an apocalyptic number.

It is an amenable number.

100221002108 is a deficient number, since it is larger than the sum of its proper divisors (75218554492).

100221002108 is a wasteful number, since it uses less digits than its factorization.

100221002108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7543276 (or 7543274 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100221002108 its reverse (801200122001), we get a palindrome (901421124109).

The spelling of 100221002108 in words is "one hundred billion, two hundred twenty-one million, two thousand, one hundred eight".