212530310 has 16 divisors (see below), whose sum is σ = 382844016. Its totient is φ = 84947808.

The previous prime is 212530301. The next prime is 212530313. The reversal of 212530310 is 13035212.

212530310 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 2×212530310² = 90338265337392200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212530313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7217 + ... + 21843.

It is an arithmetic number, because the mean of its divisors is an integer number (23927751).

Almost surely, 2^212530310 is an apocalyptic number.

212530310 is a deficient number, since it is larger than the sum of its proper divisors (170313706).

212530310 is a wasteful number, since it uses less digits than its factorization.

212530310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16087.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 212530310 is about 14578.4193244672. The cubic root of 212530310 is about 596.7699667525.

Adding to 212530310 its reverse (13035212), we get a palindrome (225565522).

The spelling of 212530310 in words is "two hundred twelve million, five hundred thirty thousand, three hundred ten".