212100010112 has 16 divisors (see below), whose sum is σ = 422542989150. Its totient is φ = 106050004992.

The previous prime is 212100010103. The next prime is 212100010117. The reversal of 212100010112 is 211010001212.

It can be written as a sum of positive squares in only one way, i.e., 180407465536 + 31692544576 = 424744^2 + 178024^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 212100010093 and 212100010102.

It is not an unprimeable number, because it can be changed into a prime (212100010117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 828515537 + ... + 828515792.

Almost surely, 2^212100010112 is an apocalyptic number.

It is an amenable number.

212100010112 is a deficient number, since it is larger than the sum of its proper divisors (210442979038).

212100010112 is an equidigital number, since it uses as much as digits as its factorization.

212100010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657031343 (or 1657031331 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 212100010112 its reverse (211010001212), we get a palindrome (423110011324).

The spelling of 212100010112 in words is "two hundred twelve billion, one hundred million, ten thousand, one hundred twelve".