12212232 has 32 divisors (see below), whose sum is σ = 30696000. Its totient is φ = 4048704.

The previous prime is 12212201. The next prime is 12212237. The reversal of 12212232 is 23221221.

It is a happy number.

It is a super-2 number, since 2×12212232² = 298277220843648, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12212237) 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, 3498 + ... + 6054.

It is an arithmetic number, because the mean of its divisors is an integer number (959250).

Almost surely, 2^12212232 is an apocalyptic number.

12212232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12212232 is an abundant number, since it is smaller than the sum of its proper divisors (18483768).

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

12212232 is a wasteful number, since it uses less digits than its factorization.

12212232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765 (or 2761 counting only the distinct ones).

The product of its digits is 96, while the sum is 15.

The square root of 12212232 is about 3494.6004063412. The cubic root of 12212232 is about 230.2846632894.

Adding to 12212232 its reverse (23221221), we get a palindrome (35433453).

It can be divided in two parts, 1221 and 2232, that multiplied together give a palindrome (2725272).

The spelling of 12212232 in words is "twelve million, two hundred twelve thousand, two hundred thirty-two".