12220670 has 64 divisors (see below), whose sum is σ = 27993600. Its totient is φ = 3730560.

The previous prime is 12220669. The next prime is 12220673. The reversal of 12220670 is 7602221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220673) 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, 45296 + ... + 45564.

It is an arithmetic number, because the mean of its divisors is an integer number (437400).

Almost surely, 2^12220670 is an apocalyptic number.

12220670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12220670 is an abundant number, since it is smaller than the sum of its proper divisors (15772930).

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

12220670 is a wasteful number, since it uses less digits than its factorization.

12220670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12220670 is about 3495.8074889788. The cubic root of 12220670 is about 230.3376892125.

Adding to 12220670 its reverse (7602221), we get a palindrome (19822891).

The spelling of 12220670 in words is "twelve million, two hundred twenty thousand, six hundred seventy".