212212010112 has 128 divisors (see below), whose sum is σ = 570540672000. Its totient is φ = 69878882304.

The previous prime is 212212010099. The next prime is 212212010117. The reversal of 212212010112 is 211010212212.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 212212010091 and 212212010100.

It is not an unprimeable number, because it can be changed into a prime (212212010117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51022689 + ... + 51026847.

It is an arithmetic number, because the mean of its divisors is an integer number (4457349000).

Almost surely, 2^212212010112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212212010112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285270336000).

212212010112 is an abundant number, since it is smaller than the sum of its proper divisors (358328661888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212212010112 is a wasteful number, since it uses less digits than its factorization.

212212010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5758 (or 5746 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212212010112 its reverse (211010212212), we get a palindrome (423222222324).

The spelling of 212212010112 in words is "two hundred twelve billion, two hundred twelve million, ten thousand, one hundred twelve".