212206252 has 24 divisors (see below), whose sum is σ = 378619920. Its totient is φ = 104049600.

The previous prime is 212206249. The next prime is 212206259. The reversal of 212206252 is 252602212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212206259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40774 + ... + 45682.

It is an arithmetic number, because the mean of its divisors is an integer number (15775830).

Almost surely, 2^212206252 is an apocalyptic number.

It is an amenable number.

212206252 is a deficient number, since it is larger than the sum of its proper divisors (166413668).

212206252 is a wasteful number, since it uses less digits than its factorization.

212206252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121 (or 5119 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 212206252 is about 14567.3007794855. The cubic root of 212206252 is about 596.4665018719.

Adding to 212206252 its reverse (252602212), we get a palindrome (464808464).

It can be divided in two parts, 21220 and 6252, that added together give a palindrome (27472).

The spelling of 212206252 in words is "two hundred twelve million, two hundred six thousand, two hundred fifty-two".