12132222 has 32 divisors (see below), whose sum is σ = 26373120. Its totient is φ = 3706560.

The previous prime is 12132217. The next prime is 12132223. The reversal of 12132222 is 22223121.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1818 + ... + 5250.

It is an arithmetic number, because the mean of its divisors is an integer number (824160).

Almost surely, 2^12132222 is an apocalyptic number.

12132222 is an abundant number, since it is smaller than the sum of its proper divisors (14240898).

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

12132222 is a wasteful number, since it uses less digits than its factorization.

12132222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3488.

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

The square root of 12132222 is about 3483.1339336867. The cubic root of 12132222 is about 229.7806478321.

Adding to 12132222 its reverse (22223121), we get a palindrome (34355343).

The spelling of 12132222 in words is "twelve million, one hundred thirty-two thousand, two hundred twenty-two".