100000212112 has 20 divisors (see below), whose sum is σ = 193756309740. Its totient is φ = 49998583808.

The previous prime is 100000212101. The next prime is 100000212149. The reversal of 100000212112 is 211212000001.

It can be written as a sum of positive squares in 2 ways, for example, as 40797536256 + 59202675856 = 201984^2 + 243316^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601308 + ... + 749380.

It is an arithmetic number, because the mean of its divisors is an integer number (9687815487).

Almost surely, 2^100000212112 is an apocalyptic number.

It is an amenable number.

100000212112 is a deficient number, since it is larger than the sum of its proper divisors (93756097628).

100000212112 is a wasteful number, since it uses less digits than its factorization.

100000212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190290 (or 190284 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100000212112 its reverse (211212000001), we get a palindrome (311212212113).

The spelling of 100000212112 in words is "one hundred billion, two hundred twelve thousand, one hundred twelve".