201112212 has 24 divisors (see below), whose sum is σ = 536299456. Its totient is φ = 57460608.

The previous prime is 201112211. The next prime is 201112213. The reversal of 201112212 is 212211102.

It is an interprime number because it is at equal distance from previous prime (201112211) and next prime (201112213).

It is a super-2 number, since 2×201112212² = 80892243631065888, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1197013 + ... + 1197180.

Almost surely, 2^201112212 is an apocalyptic number.

It is an amenable number.

201112212 is an abundant number, since it is smaller than the sum of its proper divisors (335187244).

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

201112212 is a wasteful number, since it uses less digits than its factorization.

201112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394207 (or 2394205 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 201112212 is about 14181.4037386995. The cubic root of 201112212 is about 585.8855868916.

Adding to 201112212 its reverse (212211102), we get a palindrome (413323314).

The spelling of 201112212 in words is "two hundred one million, one hundred twelve thousand, two hundred twelve".