212202112 has 32 divisors (see below), whose sum is σ = 425584800. Its totient is φ = 105388800.

The previous prime is 212202091. The next prime is 212202139. The reversal of 212202112 is 211202212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 212202092 and 212202101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13839 + ... + 24817.

It is an arithmetic number, because the mean of its divisors is an integer number (13299525).

Almost surely, 2^212202112 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 212202112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212792400).

212202112 is an abundant number, since it is smaller than the sum of its proper divisors (213382688).

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

212202112 is a wasteful number, since it uses less digits than its factorization.

212202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11144 (or 11132 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 212202112 is about 14567.1586797151. The cubic root of 212202112 is about 596.4626229611.

Adding to 212202112 its reverse (211202212), we get a palindrome (423404324).

It can be divided in two parts, 21220 and 2112, that added together give a palindrome (23332).

The spelling of 212202112 in words is "two hundred twelve million, two hundred two thousand, one hundred twelve".