12216070 has 16 divisors (see below), whose sum is σ = 22032720. Its totient is φ = 4876704.

The previous prime is 12216041. The next prime is 12216079. The reversal of 12216070 is 7061221.

12216070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12216079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6229 + ... + 7951.

It is an arithmetic number, because the mean of its divisors is an integer number (1377045).

Almost surely, 2^12216070 is an apocalyptic number.

12216070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12216070 is a deficient number, since it is larger than the sum of its proper divisors (9816650).

12216070 is a wasteful number, since it uses less digits than its factorization.

12216070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 12216070 is about 3495.1494960874. The cubic root of 12216070 is about 230.3087850051.

Adding to 12216070 its reverse (7061221), we get a palindrome (19277291).

The spelling of 12216070 in words is "twelve million, two hundred sixteen thousand, seventy".