12222688 has 24 divisors (see below), whose sum is σ = 24895080. Its totient is φ = 5900160.

The previous prime is 12222673. The next prime is 12222697. The reversal of 12222688 is 88622221.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5658 + ... + 7513.

It is an arithmetic number, because the mean of its divisors is an integer number (1037295).

Almost surely, 2^12222688 is an apocalyptic number.

It is an amenable number.

12222688 is an abundant number, since it is smaller than the sum of its proper divisors (12672392).

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

12222688 is a wasteful number, since it uses less digits than its factorization.

12222688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13210 (or 13202 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 12222688 is about 3496.0961085188. The cubic root of 12222688 is about 230.3503670737.

The spelling of 12222688 in words is "twelve million, two hundred twenty-two thousand, six hundred eighty-eight".