212325220 has 12 divisors (see below), whose sum is σ = 445883004. Its totient is φ = 84930080.

The previous prime is 212325199. The next prime is 212325227. The reversal of 212325220 is 22523212.

It can be written as a sum of positive squares in 2 ways, for example, as 80856064 + 131469156 = 8992^2 + 11466^2 .

It is not an unprimeable number, because it can be changed into a prime (212325227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5308111 + ... + 5308150.

It is an arithmetic number, because the mean of its divisors is an integer number (37156917).

Almost surely, 2^212325220 is an apocalyptic number.

212325220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212325220 is an abundant number, since it is smaller than the sum of its proper divisors (233557784).

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

212325220 is a wasteful number, since it uses less digits than its factorization.

212325220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10616270 (or 10616268 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 212325220 is about 14571.3835993704. The cubic root of 212325220 is about 596.5779456042.

Adding to 212325220 its reverse (22523212), we get a palindrome (234848432).

The spelling of 212325220 in words is "two hundred twelve million, three hundred twenty-five thousand, two hundred twenty".