100212122105 has 8 divisors (see below), whose sum is σ = 122049390912. Its totient is φ = 78973134768.

The previous prime is 100212122083. The next prime is 100212122137. The reversal of 100212122105 is 501221212001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100212122105 - 2⁶ = 100212122041 is a prime.

It is a Duffinian 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, 149569997 + ... + 149570666.

It is an arithmetic number, because the mean of its divisors is an integer number (15256173864).

Almost surely, 2^100212122105 is an apocalyptic number.

It is an amenable number.

100212122105 is a deficient number, since it is larger than the sum of its proper divisors (21837268807).

100212122105 is an equidigital number, since it uses as much as digits as its factorization.

100212122105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299140735.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 100212122105 its reverse (501221212001), we get a palindrome (601433334106).

The spelling of 100212122105 in words is "one hundred billion, two hundred twelve million, one hundred twenty-two thousand, one hundred five".