12102282 has 12 divisors (see below), whose sum is σ = 26221650. Its totient is φ = 4034088.

The previous prime is 12102271. The next prime is 12102287. The reversal of 12102282 is 28220121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11553201 + 549081 = 3399^2 + 741^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 672349 = 12102282 / (1 + 2 + 1 + 0 + 2 + 2 + 8 + 2).

It is not an unprimeable number, because it can be changed into a prime (12102287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 336157 + ... + 336192.

Almost surely, 2^12102282 is an apocalyptic number.

12102282 is an abundant number, since it is smaller than the sum of its proper divisors (14119368).

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

12102282 is a wasteful number, since it uses less digits than its factorization.

12102282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672357 (or 672354 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 12102282 is about 3478.8334251585. The cubic root of 12102282 is about 229.5914739233.

It can be divided in two parts, 121022 and 82, that added together give a square (121104 = 348²).

The spelling of 12102282 in words is "twelve million, one hundred two thousand, two hundred eighty-two".