212100211112 has 24 divisors (see below), whose sum is σ = 403210383390. Its totient is φ = 104597343360.

The previous prime is 212100211109. The next prime is 212100211123. The reversal of 212100211112 is 211112001212.

It can be written as a sum of positive squares in 3 ways, for example, as 188882375236 + 23217835876 = 434606^2 + 152374^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2444939 + ... + 2530202.

Almost surely, 2^212100211112 is an apocalyptic number.

It is an amenable number.

212100211112 is a deficient number, since it is larger than the sum of its proper divisors (191110172278).

212100211112 is an equidigital number, since it uses as much as digits as its factorization.

212100211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4975293 (or 4975216 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212100211112 its reverse (211112001212), we get a palindrome (423212212324).

The spelling of 212100211112 in words is "two hundred twelve billion, one hundred million, two hundred eleven thousand, one hundred twelve".