12111662 has 16 divisors (see below), whose sum is σ = 19045152. Its totient is φ = 5765760.

The previous prime is 12111601. The next prime is 12111707. The reversal of 12111662 is 26611121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12458 + ... + 13394.

It is an arithmetic number, because the mean of its divisors is an integer number (1190322).

Almost surely, 2^12111662 is an apocalyptic number.

12111662 is a deficient number, since it is larger than the sum of its proper divisors (6933490).

12111662 is a wasteful number, since it uses less digits than its factorization.

12111662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243.

The product of its digits is 144, while the sum is 20.

The square root of 12111662 is about 3480.1813171155. The cubic root of 12111662 is about 229.6507743617.

Adding to 12111662 its reverse (26611121), we get a palindrome (38722783).

The spelling of 12111662 in words is "twelve million, one hundred eleven thousand, six hundred sixty-two".