12662222 has 8 divisors (see below), whose sum is σ = 19010376. Its totient is φ = 6325432.

The previous prime is 12662201. The next prime is 12662233. The reversal of 12662222 is 22226621.

12662222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

12662222 is a modest number, since divided by 2222 gives 1266 as remainder.

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, 968 + ... + 5124.

It is an arithmetic number, because the mean of its divisors is an integer number (2376297).

Almost surely, 2^12662222 is an apocalyptic number.

12662222 is a deficient number, since it is larger than the sum of its proper divisors (6348154).

12662222 is a wasteful number, since it uses less digits than its factorization.

12662222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5682.

The product of its digits is 1152, while the sum is 23.

The square root of 12662222 is about 3558.4016074637. The cubic root of 12662222 is about 233.0790867853.

Adding to 12662222 its reverse (22226621), we get a palindrome (34888843).

The spelling of 12662222 in words is "twelve million, six hundred sixty-two thousand, two hundred twenty-two".