212320710 has 64 divisors (see below), whose sum is σ = 647078400. Its totient is φ = 48530016.

The previous prime is 212320699. The next prime is 212320711. The reversal of 212320710 is 17023212.

212320710 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212320711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54280 + ... + 58059.

It is an arithmetic number, because the mean of its divisors is an integer number (10110600).

Almost surely, 2^212320710 is an apocalyptic number.

212320710 is an abundant number, since it is smaller than the sum of its proper divisors (434757690).

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

212320710 is a wasteful number, since it uses less digits than its factorization.

212320710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112362 (or 112356 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 212320710 is about 14571.2288431690. The cubic root of 212320710 is about 596.5737216035.

Adding to 212320710 its reverse (17023212), we get a palindrome (229343922).

The spelling of 212320710 in words is "two hundred twelve million, three hundred twenty thousand, seven hundred ten".