12226860 has 36 divisors (see below), whose sum is σ = 37088688. Its totient is φ = 3260448.

The previous prime is 12226853. The next prime is 12226871. The reversal of 12226860 is 6862221.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×12226860² = 298992210919200, which contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 33784 + ... + 34143.

Almost surely, 2^12226860 is an apocalyptic number.

12226860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12226860 is an abundant number, since it is smaller than the sum of its proper divisors (24861828).

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

12226860 is a wasteful number, since it uses less digits than its factorization.

12226860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67942 (or 67937 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 12226860 is about 3496.6927231314. The cubic root of 12226860 is about 230.3765727771.

The spelling of 12226860 in words is "twelve million, two hundred twenty-six thousand, eight hundred sixty".