12122782 has 16 divisors (see below), whose sum is σ = 20873952. Its totient is φ = 5172480.

The previous prime is 12122723. The next prime is 12122807. The reversal of 12122782 is 28722121.

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, 1578 + ... + 5170.

It is an arithmetic number, because the mean of its divisors is an integer number (1304622).

Almost surely, 2^12122782 is an apocalyptic number.

12122782 is a deficient number, since it is larger than the sum of its proper divisors (8751170).

12122782 is a wasteful number, since it uses less digits than its factorization.

12122782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3843.

The product of its digits is 896, while the sum is 25.

The square root of 12122782 is about 3481.7785684905. The cubic root of 12122782 is about 229.7210354446.

The spelling of 12122782 in words is "twelve million, one hundred twenty-two thousand, seven hundred eighty-two".