12101215 has 8 divisors (see below), whose sum is σ = 16596000. Its totient is φ = 8297952.

The previous prime is 12101179. The next prime is 12101227. The reversal of 12101215 is 51210121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12101215 - 2⁷ = 12101087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12101195 and 12101204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172840 + ... + 172909.

It is an arithmetic number, because the mean of its divisors is an integer number (2074500).

Almost surely, 2^12101215 is an apocalyptic number.

12101215 is a deficient number, since it is larger than the sum of its proper divisors (4494785).

12101215 is an equidigital number, since it uses as much as digits as its factorization.

12101215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345761.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 12101215 is about 3478.6800657721. The cubic root of 12101215 is about 229.5847263996.

Adding to 12101215 its reverse (51210121), we get a palindrome (63311336).

The spelling of 12101215 in words is "twelve million, one hundred one thousand, two hundred fifteen".