12210730 has 32 divisors (see below), whose sum is σ = 26444160. Its totient is φ = 3965760.

The previous prime is 12210727. The next prime is 12210739. The reversal of 12210730 is 3701221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12210739) 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 15 ways as a sum of consecutive naturals, for example, 3261 + ... + 5920.

It is an arithmetic number, because the mean of its divisors is an integer number (826380).

Almost surely, 2^12210730 is an apocalyptic number.

12210730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12210730 is an abundant number, since it is smaller than the sum of its proper divisors (14233430).

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

12210730 is a wasteful number, since it uses less digits than its factorization.

12210730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9214.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 12210730 is about 3494.3854967648. The cubic root of 12210730 is about 230.2752218882.

Adding to 12210730 its reverse (3701221), we get a palindrome (15911951).

The spelling of 12210730 in words is "twelve million, two hundred ten thousand, seven hundred thirty".