12100215 has 16 divisors (see below), whose sum is σ = 19404000. Its totient is φ = 6438912.

The previous prime is 12100211. The next prime is 12100219. The reversal of 12100215 is 51200121.

12100215 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12100211) and next prime (12100219).

It is not a de Polignac number, because 12100215 - 2² = 12100211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12100215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100211) 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 15 ways as a sum of consecutive naturals, for example, 11011 + ... + 12059.

It is an arithmetic number, because the mean of its divisors is an integer number (1212750).

Almost surely, 2^12100215 is an apocalyptic number.

12100215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12100215 is a deficient number, since it is larger than the sum of its proper divisors (7303785).

12100215 is a wasteful number, since it uses less digits than its factorization.

12100215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 12100215 is about 3478.5363301251. The cubic root of 12100215 is about 229.5784022123.

Adding to 12100215 its reverse (51200121), we get a palindrome (63300336).

The spelling of 12100215 in words is "twelve million, one hundred thousand, two hundred fifteen".