212211110112 has 96 divisors (see below), whose sum is σ = 562990176000. Its totient is φ = 69987253248.

The previous prime is 212211110099. The next prime is 212211110119. The reversal of 212211110112 is 211011112212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 212211110091 and 212211110100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212211110119) 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, 3388588 + ... + 3450644.

It is an arithmetic number, because the mean of its divisors is an integer number (5864481000).

Almost surely, 2^212211110112 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 212211110112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281495088000).

212211110112 is an abundant number, since it is smaller than the sum of its proper divisors (350779065888).

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

212211110112 is a wasteful number, since it uses less digits than its factorization.

212211110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62448 (or 62440 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212211110112 its reverse (211011112212), we get a palindrome (423222222324).

The spelling of 212211110112 in words is "two hundred twelve billion, two hundred eleven million, one hundred ten thousand, one hundred twelve".