212003112 has 32 divisors (see below), whose sum is σ = 530992800. Its totient is φ = 70536384.

The previous prime is 212003111. The next prime is 212003131. The reversal of 212003112 is 211300212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (212003111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5439 + ... + 21297.

It is an arithmetic number, because the mean of its divisors is an integer number (16593525).

Almost surely, 2^212003112 is an apocalyptic number.

It is an amenable number.

212003112 is an abundant number, since it is smaller than the sum of its proper divisors (318989688).

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

212003112 is a wasteful number, since it uses less digits than its factorization.

212003112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16425 (or 16421 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 212003112 is about 14560.3266446876. The cubic root of 212003112 is about 596.2761133736.

Adding to 212003112 its reverse (211300212), we get a palindrome (423303324).

The spelling of 212003112 in words is "two hundred twelve million, three thousand, one hundred twelve".