12212670 has 32 divisors (see below), whose sum is σ = 30028320. Its totient is φ = 3176960.

The previous prime is 12212657. The next prime is 12212677. The reversal of 12212670 is 7621221.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3735 + ... + 6194.

It is an arithmetic number, because the mean of its divisors is an integer number (938385).

Almost surely, 2^12212670 is an apocalyptic number.

12212670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212670 is an abundant number, since it is smaller than the sum of its proper divisors (17815650).

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

12212670 is a wasteful number, since it uses less digits than its factorization.

12212670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9980.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 12212670 is about 3494.6630738885. The cubic root of 12212670 is about 230.2874163618.

Adding to 12212670 its reverse (7621221), we get a palindrome (19833891).

The spelling of 12212670 in words is "twelve million, two hundred twelve thousand, six hundred seventy".