212233242 has 48 divisors (see below), whose sum is σ = 461792448. Its totient is φ = 64995840.

The previous prime is 212233237. The next prime is 212233243. The reversal of 212233242 is 242332212.

It is not an unprimeable number, because it can be changed into a prime (212233243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 315018 + ... + 315690.

It is an arithmetic number, because the mean of its divisors is an integer number (9620676).

Almost surely, 2^212233242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212233242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230896224).

212233242 is an abundant number, since it is smaller than the sum of its proper divisors (249559206).

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

212233242 is a wasteful number, since it uses less digits than its factorization.

212233242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015 (or 1002 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 212233242 is about 14568.2271399096. The cubic root of 212233242 is about 596.4917885105.

Adding to 212233242 its reverse (242332212), we get a palindrome (454565454).

The spelling of 212233242 in words is "two hundred twelve million, two hundred thirty-three thousand, two hundred forty-two".