12215080 has 16 divisors (see below), whose sum is σ = 27484020. Its totient is φ = 4886016.

The previous prime is 12215039. The next prime is 12215087. The reversal of 12215080 is 8051221.

It can be written as a sum of positive squares in 2 ways, for example, as 11035684 + 1179396 = 3322^2 + 1086^2 .

It is not an unprimeable number, because it can be changed into a prime (12215087) 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 3 ways as a sum of consecutive naturals, for example, 152649 + ... + 152728.

Almost surely, 2^12215080 is an apocalyptic number.

12215080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12215080 is an abundant number, since it is smaller than the sum of its proper divisors (15268940).

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

12215080 is a wasteful number, since it uses less digits than its factorization.

12215080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305388 (or 305384 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 12215080 is about 3495.0078683745. The cubic root of 12215080 is about 230.3025633682.

The spelling of 12215080 in words is "twelve million, two hundred fifteen thousand, eighty".