12120522 has 16 divisors (see below), whose sum is σ = 24417120. Its totient is φ = 4010832.

The previous prime is 12120509. The next prime is 12120523. The reversal of 12120522 is 22502121.

It is not an unprimeable number, because it can be changed into a prime (12120523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6433 + ... + 8100.

It is an arithmetic number, because the mean of its divisors is an integer number (1526070).

Almost surely, 2^12120522 is an apocalyptic number.

12120522 is an abundant number, since it is smaller than the sum of its proper divisors (12296598).

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

12120522 is a wasteful number, since it uses less digits than its factorization.

12120522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14677.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 12120522 is about 3481.4540065898. The cubic root of 12120522 is about 229.7067592440.

Adding to 12120522 its reverse (22502121), we get a palindrome (34622643).

The spelling of 12120522 in words is "twelve million, one hundred twenty thousand, five hundred twenty-two".