212524422 has 32 divisors (see below), whose sum is σ = 464914944. Its totient is φ = 64231200.

The previous prime is 212524421. The next prime is 212524423. The reversal of 212524422 is 224425212.

It is an interprime number because it is at equal distance from previous prime (212524421) and next prime (212524423).

It is a junction number, because it is equal to n+sod(n) for n = 212524392 and 212524401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212524421) 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, 22147 + ... + 30257.

It is an arithmetic number, because the mean of its divisors is an integer number (14528592).

Almost surely, 2^212524422 is an apocalyptic number.

212524422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212524422 is an abundant number, since it is smaller than the sum of its proper divisors (252390522).

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

212524422 is a wasteful number, since it uses less digits than its factorization.

212524422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8524.

The product of its digits is 2560, while the sum is 24.

The square root of 212524422 is about 14578.2173807362. The cubic root of 212524422 is about 596.7644556735.

Adding to 212524422 its reverse (224425212), we get a palindrome (436949634).

The spelling of 212524422 in words is "two hundred twelve million, five hundred twenty-four thousand, four hundred twenty-two".