12205955 has 8 divisors (see below), whose sum is σ = 15152400. Its totient is φ = 9427936.

The previous prime is 12205933. The next prime is 12205957. The reversal of 12205955 is 55950221.

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 12205955 - 2⁶ = 12205891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (12205957) 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, 41945 + ... + 42234.

It is an arithmetic number, because the mean of its divisors is an integer number (1894050).

Almost surely, 2^12205955 is an apocalyptic number.

12205955 is a deficient number, since it is larger than the sum of its proper divisors (2946445).

12205955 is an equidigital number, since it uses as much as digits as its factorization.

12205955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84213.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 12205955 is about 3493.7021910861. The cubic root of 12205955 is about 230.2452016371.

The spelling of 12205955 in words is "twelve million, two hundred five thousand, nine hundred fifty-five".