12212235 has 32 divisors (see below), whose sum is σ = 24814080. Its totient is φ = 5582304.

The previous prime is 12212201. The next prime is 12212237. The reversal of 12212235 is 53221221.

It is not a de Polignac number, because 12212235 - 2⁷ = 12212107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12212237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5517 + ... + 7406.

It is an arithmetic number, because the mean of its divisors is an integer number (775440).

Almost surely, 2^12212235 is an apocalyptic number.

12212235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12212235 is an abundant number, since it is smaller than the sum of its proper divisors (12601845).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12212235 is a wasteful number, since it uses less digits than its factorization.

12212235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12944 (or 12938 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 12212235 is about 3494.6008355748. The cubic root of 12212235 is about 230.2846821463.

Adding to 12212235 its reverse (53221221), we get a palindrome (65433456).

The spelling of 12212235 in words is "twelve million, two hundred twelve thousand, two hundred thirty-five".