12203215 has 4 divisors (see below), whose sum is σ = 14643864. Its totient is φ = 9762568.

The previous prime is 12203207. The next prime is 12203231. The reversal of 12203215 is 51230221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12203215 - 2³ = 12203207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1220317 + ... + 1220326.

It is an arithmetic number, because the mean of its divisors is an integer number (3660966).

Almost surely, 2^12203215 is an apocalyptic number.

12203215 is a deficient number, since it is larger than the sum of its proper divisors (2440649).

12203215 is an equidigital number, since it uses as much as digits as its factorization.

12203215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440648.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 12203215 is about 3493.3100349096. The cubic root of 12203215 is about 230.2279718214.

Adding to 12203215 its reverse (51230221), we get a palindrome (63433436).

The spelling of 12203215 in words is "twelve million, two hundred three thousand, two hundred fifteen".