12206055 has 16 divisors (see below), whose sum is σ = 19573344. Its totient is φ = 6495360.

The previous prime is 12206021. The next prime is 12206057. The reversal of 12206055 is 55060221.

12206055 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12206055 - 2⁸ = 12205799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12206057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11445 + ... + 12465.

It is an arithmetic number, because the mean of its divisors is an integer number (1223334).

Almost surely, 2^12206055 is an apocalyptic number.

12206055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12206055 is a deficient number, since it is larger than the sum of its proper divisors (7367289).

12206055 is a wasteful number, since it uses less digits than its factorization.

12206055 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 600, while the sum is 21.

The square root of 12206055 is about 3493.7165025228. The cubic root of 12206055 is about 230.2458304137.

Adding to 12206055 its reverse (55060221), we get a palindrome (67266276).

The spelling of 12206055 in words is "twelve million, two hundred six thousand, fifty-five".