212100102212 has 24 divisors (see below), whose sum is σ = 387776070360. Its totient is φ = 101379353600.

The previous prime is 212100102199. The next prime is 212100102239. The reversal of 212100102212 is 212201001212.

It can be written as a sum of positive squares in 4 ways, for example, as 72309361216 + 139790740996 = 268904^2 + 373886^2 .

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, 9040013 + ... + 9063444.

It is an arithmetic number, because the mean of its divisors is an integer number (16157336265).

Almost surely, 2^212100102212 is an apocalyptic number.

It is an amenable number.

212100102212 is a deficient number, since it is larger than the sum of its proper divisors (175675968148).

212100102212 is a wasteful number, since it uses less digits than its factorization.

212100102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18103591 (or 18103589 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212100102212 its reverse (212201001212), we get a palindrome (424301103424).

The spelling of 212100102212 in words is "two hundred twelve billion, one hundred million, one hundred two thousand, two hundred twelve".