212030310 has 128 divisors (see below), whose sum is σ = 564019200. Its totient is φ = 50803200.

The previous prime is 212030309. The next prime is 212030317. The reversal of 212030310 is 13030212.

212030310 = 231² + 232² + ... + 865².

It is a happy number.

212030310 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212030310² = 89913704717392200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212030317) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1669467 + ... + 1669593.

It is an arithmetic number, because the mean of its divisors is an integer number (4406400).

Almost surely, 2^212030310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212030310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282009600).

212030310 is an abundant number, since it is smaller than the sum of its proper divisors (351988890).

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

212030310 is a wasteful number, since it uses less digits than its factorization.

212030310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 212030310 is about 14561.2605910340. The cubic root of 212030310 is about 596.3016111507.

Adding to 212030310 its reverse (13030212), we get a palindrome (225060522).

The spelling of 212030310 in words is "two hundred twelve million, thirty thousand, three hundred ten".