12204222 has 16 divisors (see below), whose sum is σ = 24596352. Its totient is φ = 4036760.

The previous prime is 12204221. The next prime is 12204223. The reversal of 12204222 is 22240221.

It is an interprime number because it is at equal distance from previous prime (12204221) and next prime (12204223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12204221) 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, 6978 + ... + 8549.

It is an arithmetic number, because the mean of its divisors is an integer number (1537272).

Almost surely, 2^12204222 is an apocalyptic number.

12204222 is an abundant number, since it is smaller than the sum of its proper divisors (12392130).

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

12204222 is a wasteful number, since it uses less digits than its factorization.

12204222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15663.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 12204222 is about 3493.4541645769. The cubic root of 12204222 is about 230.2343043928.

Adding to 12204222 its reverse (22240221), we get a palindrome (34444443).

The spelling of 12204222 in words is "twelve million, two hundred four thousand, two hundred twenty-two".