12285522 has 48 divisors (see below), whose sum is σ = 27623232. Its totient is φ = 3944160.

The previous prime is 12285521. The next prime is 12285523. The reversal of 12285522 is 22558221.

It is an interprime number because it is at equal distance from previous prime (12285521) and next prime (12285523).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (12285521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73483 + ... + 73649.

It is an arithmetic number, because the mean of its divisors is an integer number (575484).

Almost surely, 2^12285522 is an apocalyptic number.

12285522 is an abundant number, since it is smaller than the sum of its proper divisors (15337710).

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

12285522 is a wasteful number, since it uses less digits than its factorization.

12285522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 300 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 12285522 is about 3505.0708979991. The cubic root of 12285522 is about 230.7444185118.

The spelling of 12285522 in words is "twelve million, two hundred eighty-five thousand, five hundred twenty-two".