100211212105 has 16 divisors (see below), whose sum is σ = 123437478528. Its totient is φ = 78054256000.

The previous prime is 100211212027. The next prime is 100211212151. The reversal of 100211212105 is 501212112001.

It is not a de Polignac number, because 100211212105 - 2¹⁵ = 100211179337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397141 + ... + 598450.

It is an arithmetic number, because the mean of its divisors is an integer number (7714842408).

Almost surely, 2^100211212105 is an apocalyptic number.

It is an amenable number.

100211212105 is a deficient number, since it is larger than the sum of its proper divisors (23226266423).

100211212105 is an equidigital number, since it uses as much as digits as its factorization.

100211212105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996128.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 100211212105 its reverse (501212112001), we get a palindrome (601423324106).

The spelling of 100211212105 in words is "one hundred billion, two hundred eleven million, two hundred twelve thousand, one hundred five".