12210280 has 64 divisors (see below), whose sum is σ = 29145600. Its totient is φ = 4596480.

The previous prime is 12210277. The next prime is 12210283. The reversal of 12210280 is 8201221.

It is an interprime number because it is at equal distance from previous prime (12210277) and next prime (12210283).

It is not an unprimeable number, because it can be changed into a prime (12210283) 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, 53206 + ... + 53434.

It is an arithmetic number, because the mean of its divisors is an integer number (455400).

Almost surely, 2^12210280 is an apocalyptic number.

12210280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12210280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14572800).

12210280 is an abundant number, since it is smaller than the sum of its proper divisors (16935320).

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

12210280 is a wasteful number, since it uses less digits than its factorization.

12210280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 12210280 is about 3494.3211071680. The cubic root of 12210280 is about 230.2723930887.

The spelling of 12210280 in words is "twelve million, two hundred ten thousand, two hundred eighty".