12212080 has 40 divisors (see below), whose sum is σ = 29632032. Its totient is φ = 4671744.

The previous prime is 12212077. The next prime is 12212087. The reversal of 12212080 is 8021221.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1479 + ... + 5158.

Almost surely, 2^12212080 is an apocalyptic number.

12212080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212080 is an abundant number, since it is smaller than the sum of its proper divisors (17419952).

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

12212080 is a wasteful number, since it uses less digits than its factorization.

12212080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673 (or 6667 counting only the distinct ones).

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

The square root of 12212080 is about 3494.5786584365. The cubic root of 12212080 is about 230.2837078699.

The spelling of 12212080 in words is "twelve million, two hundred twelve thousand, eighty".