212011112 has 64 divisors (see below), whose sum is σ = 425865600. Its totient is φ = 98784000.

The previous prime is 212011087. The next prime is 212011117. The reversal of 212011112 is 211110212.

It is a super-2 number, since 2×212011112² = 89897423222953088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212011093 and 212011102.

It is not an unprimeable number, because it can be changed into a prime (212011117) 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, 1004687 + ... + 1004897.

It is an arithmetic number, because the mean of its divisors is an integer number (6654150).

Almost surely, 2^212011112 is an apocalyptic number.

It is an amenable number.

212011112 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

212011112 is a wasteful number, since it uses less digits than its factorization.

212011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 374 counting only the distinct ones).

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

The square root of 212011112 is about 14560.6013612076. The cubic root of 212011112 is about 596.2836134976.

Adding to 212011112 its reverse (211110212), we get a palindrome (423121324).

The spelling of 212011112 in words is "two hundred twelve million, eleven thousand, one hundred twelve".